20369680737 has 16 divisors (see below), whose sum is σ = 31266083712. Its totient is φ = 11554853760.

The previous prime is 20369680717. The next prime is 20369680763. The reversal of 20369680737 is 73708696302.

It is not a de Polignac number, because 20369680737 - 2⁷ = 20369680609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20369680737.

It is not an unprimeable number, because it can be changed into a prime (20369680717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3537214 + ... + 3542967.

It is an arithmetic number, because the mean of its divisors is an integer number (1954130232).

Almost surely, 2^20369680737 is an apocalyptic number.

It is an amenable number.

20369680737 is a deficient number, since it is larger than the sum of its proper divisors (10896402975).

20369680737 is a wasteful number, since it uses less digits than its factorization.

20369680737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7080328.

The product of its (nonzero) digits is 2286144, while the sum is 51.

The spelling of 20369680737 in words is "twenty billion, three hundred sixty-nine million, six hundred eighty thousand, seven hundred thirty-seven".