21962106180 has 96 divisors (see below), whose sum is σ = 78087502080. Its totient is φ = 5019909120.

The previous prime is 21962106161. The next prime is 21962106193. The reversal of 21962106180 is 8160126912.

21962106180 is a `hidden beast` number, since 2 + 19 + 6 + 21 + 0 + 618 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2901261 + ... + 2908820.

It is an arithmetic number, because the mean of its divisors is an integer number (813411480).

Almost surely, 2^21962106180 is an apocalyptic number.

21962106180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21962106180 is an abundant number, since it is smaller than the sum of its proper divisors (56125395900).

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

21962106180 is a wasteful number, since it uses less digits than its factorization.

21962106180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5810106 (or 5810098 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 21962106180 in words is "twenty-one billion, nine hundred sixty-two million, one hundred six thousand, one hundred eighty".