655650111828 has 12 divisors (see below), whose sum is σ = 1529850260960. Its totient is φ = 218550037272.

The previous prime is 655650111661. The next prime is 655650111847. The reversal of 655650111828 is 828111056556.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 27318754648 + ... + 27318754671.

Almost surely, 2^655650111828 is an apocalyptic number.

It is an amenable number.

655650111828 is an abundant number, since it is smaller than the sum of its proper divisors (874200149132).

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

655650111828 is a wasteful number, since it uses less digits than its factorization.

655650111828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54637509326 (or 54637509324 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 48.

The spelling of 655650111828 in words is "six hundred fifty-five billion, six hundred fifty million, one hundred eleven thousand, eight hundred twenty-eight".