655790587896 has 16 divisors (see below), whose sum is σ = 1639476469800. Its totient is φ = 218596862624.

The previous prime is 655790587871. The next prime is 655790587909. The reversal of 655790587896 is 698785097556.

655790587896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×655790587896² (a number of 24 digits) contains 22 as substring.

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, 13662303891 + ... + 13662303938.

Almost surely, 2^655790587896 is an apocalyptic number.

It is an amenable number.

655790587896 is an abundant number, since it is smaller than the sum of its proper divisors (983685881904).

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

655790587896 is a wasteful number, since it uses less digits than its factorization.

655790587896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27324607838 (or 27324607834 counting only the distinct ones).

The product of its (nonzero) digits is 1143072000, while the sum is 75.

The spelling of 655790587896 in words is "six hundred fifty-five billion, seven hundred ninety million, five hundred eighty-seven thousand, eight hundred ninety-six".