21160651152 has 20 divisors (see below), whose sum is σ = 54665015600. Its totient is φ = 7053550368.

The previous prime is 21160651147. The next prime is 21160651189. The reversal of 21160651152 is 25115606112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220423402 + ... + 220423497.

It is an arithmetic number, because the mean of its divisors is an integer number (2733250780).

Almost surely, 2^21160651152 is an apocalyptic number.

It is an amenable number.

21160651152 is an abundant number, since it is smaller than the sum of its proper divisors (33504364448).

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

21160651152 is a wasteful number, since it uses less digits than its factorization.

21160651152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440846910 (or 440846904 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 21160651152 in words is "twenty-one billion, one hundred sixty million, six hundred fifty-one thousand, one hundred fifty-two".