655120115 has 16 divisors (see below), whose sum is σ = 849072000. Its totient is φ = 482378112.

The previous prime is 655120069. The next prime is 655120217. The reversal of 655120115 is 511021556.

655120115 = 208² + 209² + ... + 1254².

It is a cyclic number.

It is not a de Polignac number, because 655120115 - 2⁶ = 655120051 is a prime.

It is a super-2 number, since 2×655120115² = 858364730155226450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8246 + ... + 37124.

It is an arithmetic number, because the mean of its divisors is an integer number (53067000).

Almost surely, 2^655120115 is an apocalyptic number.

655120115 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

655120115 is a deficient number, since it is larger than the sum of its proper divisors (193951885).

655120115 is a wasteful number, since it uses less digits than its factorization.

655120115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29246.

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 655120115 is about 25595.3143172730. The cubic root of 655120115 is about 868.5076432456.

The spelling of 655120115 in words is "six hundred fifty-five million, one hundred twenty thousand, one hundred fifteen".