10715221620 has 48 divisors (see below), whose sum is σ = 33336246720. Its totient is φ = 2857392288.

The previous prime is 10715221613. The next prime is 10715221639. The reversal of 10715221620 is 2612251701.

10715221620 is a `hidden beast` number, since 1 + 0 + 7 + 15 + 2 + 21 + 620 = 666.

It is a super-2 number, since 2×10715221620² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9920962 + ... + 9922041.

It is an arithmetic number, because the mean of its divisors is an integer number (694505140).

Almost surely, 2^10715221620 is an apocalyptic number.

10715221620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10715221620 is an abundant number, since it is smaller than the sum of its proper divisors (22621025100).

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

10715221620 is a wasteful number, since it uses less digits than its factorization.

10715221620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19843021 (or 19843013 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The spelling of 10715221620 in words is "ten billion, seven hundred fifteen million, two hundred twenty-one thousand, six hundred twenty".