20369680736 has 48 divisors (see below), whose sum is σ = 41873585040. Its totient is φ = 9741688320.

The previous prime is 20369680717. The next prime is 20369680763. The reversal of 20369680736 is 63708696302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3275 + ... + 201866.

It is an arithmetic number, because the mean of its divisors is an integer number (872366355).

Almost surely, 2^20369680736 is an apocalyptic number.

It is an amenable number.

20369680736 is an abundant number, since it is smaller than the sum of its proper divisors (21503904304).

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

20369680736 is a wasteful number, since it uses less digits than its factorization.

20369680736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205287 (or 205279 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 50.

The spelling of 20369680736 in words is "twenty billion, three hundred sixty-nine million, six hundred eighty thousand, seven hundred thirty-six".