10021431028656 has 40 divisors (see below), whose sum is σ = 25971940260864. Its totient is φ = 3329735920960.

The previous prime is 10021431028643. The next prime is 10021431028699. The reversal of 10021431028656 is 65682013412001.

10021431028656 is digitally balanced in base 2, because in such base 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, 335643936 + ... + 335673791.

Almost surely, 2^{10021431028656} is an apocalyptic number.

10021431028656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10021431028656 is an abundant number, since it is smaller than the sum of its proper divisors (15950509232208).

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

10021431028656 is a wasteful number, since it uses less digits than its factorization.

10021431028656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671318049 (or 671318043 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 10021431028656 in words is "ten trillion, twenty-one billion, four hundred thirty-one million, twenty-eight thousand, six hundred fifty-six".