655555616610 has 64 divisors (see below), whose sum is σ = 1713248841600. Its totient is φ = 159903217152.

The previous prime is 655555616567. The next prime is 655555616633. The reversal of 655555616610 is 16616555556.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19812739 + ... + 19845798.

It is an arithmetic number, because the mean of its divisors is an integer number (26769513150).

Almost surely, 2^655555616610 is an apocalyptic number.

655555616610 is an abundant number, since it is smaller than the sum of its proper divisors (1057693224990).

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

655555616610 is a wasteful number, since it uses less digits than its factorization.

655555616610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39658595.

The product of its (nonzero) digits is 4050000, while the sum is 51.

The spelling of 655555616610 in words is "six hundred fifty-five billion, five hundred fifty-five million, six hundred sixteen thousand, six hundred ten".