21163176332 has 12 divisors (see below), whose sum is σ = 37504363680. Its totient is φ = 10447643856.

The previous prime is 21163176319. The next prime is 21163176347. The reversal of 21163176332 is 23367136112.

It is a junction number, because it is equal to n+sod(n) for n = 21163176292 and 21163176301.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33485723 + ... + 33486354.

It is an arithmetic number, because the mean of its divisors is an integer number (3125363640).

Almost surely, 2^21163176332 is an apocalyptic number.

It is an amenable number.

21163176332 is a deficient number, since it is larger than the sum of its proper divisors (16341187348).

21163176332 is a wasteful number, since it uses less digits than its factorization.

21163176332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66972160 (or 66972158 counting only the distinct ones).

The product of its digits is 27216, while the sum is 35.

The spelling of 21163176332 in words is "twenty-one billion, one hundred sixty-three million, one hundred seventy-six thousand, three hundred thirty-two".