21674516152 has 16 divisors (see below), whose sum is σ = 42778650600. Its totient is φ = 10266876000.

The previous prime is 21674516113. The next prime is 21674516173. The reversal of 21674516152 is 25161547612.

It is a congruent number.

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, 71297599 + ... + 71297902.

Almost surely, 2^21674516152 is an apocalyptic number.

It is an amenable number.

21674516152 is a deficient number, since it is larger than the sum of its proper divisors (21104134448).

21674516152 is a wasteful number, since it uses less digits than its factorization.

21674516152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142595526 (or 142595522 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

The spelling of 21674516152 in words is "twenty-one billion, six hundred seventy-four million, five hundred sixteen thousand, one hundred fifty-two".