655516166660 has 12 divisors (see below), whose sum is σ = 1376583950028. Its totient is φ = 262206466656.

The previous prime is 655516166651. The next prime is 655516166671. The reversal of 655516166660 is 66661615556.

It is a happy number.

655516166660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 73649275456 + 581866891204 = 271384^2 + 762802^2 .

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, 16387904147 + ... + 16387904186.

It is an arithmetic number, because the mean of its divisors is an integer number (114715329169).

Almost surely, 2^655516166660 is an apocalyptic number.

It is an amenable number.

655516166660 is an abundant number, since it is smaller than the sum of its proper divisors (721067783368).

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

655516166660 is a wasteful number, since it uses less digits than its factorization.

655516166660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32775808342 (or 32775808340 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 53.

The spelling of 655516166660 in words is "six hundred fifty-five billion, five hundred sixteen million, one hundred sixty-six thousand, six hundred sixty".