20771087524 has 48 divisors (see below), whose sum is σ = 40187347200. Its totient is φ = 9315129600.

The previous prime is 20771087473. The next prime is 20771087537. The reversal of 20771087524 is 42578017702.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1137184 + ... + 1155304.

It is an arithmetic number, because the mean of its divisors is an integer number (837236400).

Almost surely, 2^20771087524 is an apocalyptic number.

It is an amenable number.

20771087524 is a deficient number, since it is larger than the sum of its proper divisors (19416259676).

20771087524 is a wasteful number, since it uses less digits than its factorization.

20771087524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18484 (or 18482 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 43.

The spelling of 20771087524 in words is "twenty billion, seven hundred seventy-one million, eighty-seven thousand, five hundred twenty-four".