655516660488 has 32 divisors (see below), whose sum is σ = 1648604784960. Its totient is φ = 217197135680.

The previous prime is 655516660433. The next prime is 655516660493. The reversal of 655516660488 is 884066615556.

655516660488 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 81772023 + ... + 81780038.

It is an arithmetic number, because the mean of its divisors is an integer number (51518899530).

Almost surely, 2^655516660488 is an apocalyptic number.

It is an amenable number.

655516660488 is an abundant number, since it is smaller than the sum of its proper divisors (993088124472).

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

655516660488 is a wasteful number, since it uses less digits than its factorization.

655516660488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163552237 (or 163552233 counting only the distinct ones).

The product of its (nonzero) digits is 41472000, while the sum is 60.

The spelling of 655516660488 in words is "six hundred fifty-five billion, five hundred sixteen million, six hundred sixty thousand, four hundred eighty-eight".