20516607752 has 64 divisors (see below), whose sum is σ = 40952736000. Its totient is φ = 9615133440.

The previous prime is 20516607739. The next prime is 20516607763. The reversal of 20516607752 is 25770661502.

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, 3105749 + ... + 3112347.

It is an arithmetic number, because the mean of its divisors is an integer number (639886500).

Almost surely, 2^20516607752 is an apocalyptic number.

It is an amenable number.

20516607752 is a deficient number, since it is larger than the sum of its proper divisors (20436128248).

20516607752 is a wasteful number, since it uses less digits than its factorization.

20516607752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6966 (or 6962 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 20516607752 in words is "twenty billion, five hundred sixteen million, six hundred seven thousand, seven hundred fifty-two".