21163614124 has 6 divisors (see below), whose sum is σ = 37036324724. Its totient is φ = 10581807060.

The previous prime is 21163614083. The next prime is 21163614181. The reversal of 21163614124 is 42141636112.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2645451762 + ... + 2645451769.

Almost surely, 2^21163614124 is an apocalyptic number.

It is an amenable number.

21163614124 is a deficient number, since it is larger than the sum of its proper divisors (15872710600).

21163614124 is a wasteful number, since it uses less digits than its factorization.

21163614124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5290903535 (or 5290903533 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

It can be divided in two parts, 2116361412 and 4, that multiplied together give a palindrome (8465445648).

The spelling of 21163614124 in words is "twenty-one billion, one hundred sixty-three million, six hundred fourteen thousand, one hundred twenty-four".