655897703136 has 96 divisors (see below), whose sum is σ = 1951760442240. Its totient is φ = 191192845824.

The previous prime is 655897703089. The next prime is 655897703159. The reversal of 655897703136 is 631307798556.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 655897703136.

It is a congruent number.

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, 13806790 + ... + 13854213.

It is an arithmetic number, because the mean of its divisors is an integer number (20330837940).

Almost surely, 2^655897703136 is an apocalyptic number.

It is an amenable number.

655897703136 is an abundant number, since it is smaller than the sum of its proper divisors (1295862739104).

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

655897703136 is a wasteful number, since it uses less digits than its factorization.

655897703136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27661048 (or 27661040 counting only the distinct ones).

The product of its (nonzero) digits is 28576800, while the sum is 60.

The spelling of 655897703136 in words is "six hundred fifty-five billion, eight hundred ninety-seven million, seven hundred three thousand, one hundred thirty-six".