1656041250 has 80 divisors (see below), whose sum is σ = 4240117728. Its totient is φ = 430800000.

The previous prime is 1656041207. The next prime is 1656041263. The reversal of 1656041250 is 521406561.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 148365 + ... + 159135.

Almost surely, 2^1656041250 is an apocalyptic number.

1656041250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1656041250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2120058864).

1656041250 is an abundant number, since it is smaller than the sum of its proper divisors (2584076478).

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

1656041250 is a wasteful number, since it uses less digits than its factorization.

1656041250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10837 (or 10822 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1656041250 is about 40694.4867273197. The cubic root of 1656041250 is about 1183.1061632732.

The spelling of 1656041250 in words is "one billion, six hundred fifty-six million, forty-one thousand, two hundred fifty".