21370176152 has 32 divisors (see below), whose sum is σ = 43161343680. Its totient is φ = 9860866560.

The previous prime is 21370176101. The next prime is 21370176181. The reversal of 21370176152 is 25167107312.

It is a congruent number.

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, 475952 + ... + 518912.

It is an arithmetic number, because the mean of its divisors is an integer number (1348791990).

Almost surely, 2^21370176152 is an apocalyptic number.

It is an amenable number.

21370176152 is an abundant number, since it is smaller than the sum of its proper divisors (21791167528).

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

21370176152 is a wasteful number, since it uses less digits than its factorization.

21370176152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47763 (or 47759 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 35.

The spelling of 21370176152 in words is "twenty-one billion, three hundred seventy million, one hundred seventy-six thousand, one hundred fifty-two".