655345995860 has 12 divisors (see below), whose sum is σ = 1376226591348. Its totient is φ = 262138398336.

The previous prime is 655345995859. The next prime is 655345995893. The reversal of 655345995860 is 68599543556.

It can be written as a sum of positive squares in 2 ways, for example, as 95671438864 + 559674556996 = 309308^2 + 748114^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16383649877 + ... + 16383649916.

It is an arithmetic number, because the mean of its divisors is an integer number (114685549279).

Almost surely, 2^655345995860 is an apocalyptic number.

It is an amenable number.

655345995860 is an abundant number, since it is smaller than the sum of its proper divisors (720880595488).

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

655345995860 is a wasteful number, since it uses less digits than its factorization.

655345995860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32767299802 (or 32767299800 counting only the distinct ones).

The product of its (nonzero) digits is 174960000, while the sum is 65.

The spelling of 655345995860 in words is "six hundred fifty-five billion, three hundred forty-five million, nine hundred ninety-five thousand, eight hundred sixty".