1655368120 has 32 divisors (see below), whose sum is σ = 4256661600. Its totient is φ = 567554688.

The previous prime is 1655368073. The next prime is 1655368139. The reversal of 1655368120 is 218635561.

It is a super-2 number, since 2×1655368120² = 5480487225424668800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1655368120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2955735 + ... + 2956294.

It is an arithmetic number, because the mean of its divisors is an integer number (133020675).

Almost surely, 2^1655368120 is an apocalyptic number.

1655368120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1655368120 is an abundant number, since it is smaller than the sum of its proper divisors (2601293480).

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

1655368120 is a wasteful number, since it uses less digits than its factorization.

1655368120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5912047 (or 5912043 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 1655368120 is about 40686.2153560638. The cubic root of 1655368120 is about 1182.9458427543.

The spelling of 1655368120 in words is "one billion, six hundred fifty-five million, three hundred sixty-eight thousand, one hundred twenty".