10020644368 has 40 divisors (see below), whose sum is σ = 22229718080. Its totient is φ = 4286597760.

The previous prime is 10020644351. The next prime is 10020644371. The reversal of 10020644368 is 86344602001.

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, 22098 + ... + 143281.

It is an arithmetic number, because the mean of its divisors is an integer number (555742952).

Almost surely, 2^10020644368 is an apocalyptic number.

It is an amenable number.

10020644368 is an abundant number, since it is smaller than the sum of its proper divisors (12209073712).

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

10020644368 is a wasteful number, since it uses less digits than its factorization.

10020644368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165935 (or 165929 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The spelling of 10020644368 in words is "ten billion, twenty million, six hundred forty-four thousand, three hundred sixty-eight".