1655607120 has 40 divisors (see below), whose sum is σ = 5132382816. Its totient is φ = 441495168.

The previous prime is 1655607089. The next prime is 1655607127. The reversal of 1655607120 is 217065561.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1655607127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3448942 + ... + 3449421.

Almost surely, 2^1655607120 is an apocalyptic number.

1655607120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1655607120 is an abundant number, since it is smaller than the sum of its proper divisors (3476775696).

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

1655607120 is a wasteful number, since it uses less digits than its factorization.

1655607120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6898379 (or 6898373 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 1655607120 is about 40689.1523627613. The cubic root of 1655607120 is about 1183.0027707667.

The spelling of 1655607120 in words is "one billion, six hundred fifty-five million, six hundred seven thousand, one hundred twenty".