1656073125 has 120 divisors (see below), whose sum is σ = 3452344896. Its totient is φ = 749088000.

The previous prime is 1656073123. The next prime is 1656073127. The reversal of 1656073125 is 5213706561.

1656073125 is a `hidden beast` number, since 1 + 6 + 560 + 73 + 1 + 25 = 666.

It is an interprime number because it is at equal distance from previous prime (1656073123) and next prime (1656073127).

It is not a de Polignac number, because 1656073125 - 2¹ = 1656073123 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1656073125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1656073123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 5394222 + ... + 5394528.

Almost surely, 2^1656073125 is an apocalyptic number.

1656073125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1656073125 is an abundant number, since it is smaller than the sum of its proper divisors (1796271771).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1656073125 is a wasteful number, since it uses less digits than its factorization.

1656073125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 1656073125 is about 40694.8783632535. The cubic root of 1656073125 is about 1183.1137539189.

Adding to 1656073125 its reverse (5213706561), we get a palindrome (6869779686).

The spelling of 1656073125 in words is "one billion, six hundred fifty-six million, seventy-three thousand, one hundred twenty-five".