655652986960 has 40 divisors (see below), whose sum is σ = 1528639482240. Its totient is φ = 261530650752.

The previous prime is 655652986957. The next prime is 655652986979. The reversal of 655652986960 is 69689256556.

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

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, 11385852 + ... + 11443291.

It is an arithmetic number, because the mean of its divisors is an integer number (38215987056).

Almost surely, 2^655652986960 is an apocalyptic number.

It is an amenable number.

655652986960 is an abundant number, since it is smaller than the sum of its proper divisors (872986495280).

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

655652986960 is a wasteful number, since it uses less digits than its factorization.

655652986960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22829515 (or 22829509 counting only the distinct ones).

The product of its (nonzero) digits is 209952000, while the sum is 67.

The spelling of 655652986960 in words is "six hundred fifty-five billion, six hundred fifty-two million, nine hundred eighty-six thousand, nine hundred sixty".