20373345537 has 8 divisors (see below), whose sum is σ = 27209812800. Its totient is φ = 13559554320.

The previous prime is 20373345511. The next prime is 20373345563. The reversal of 20373345537 is 73554337302.

It is an interprime number because it is at equal distance from previous prime (20373345511) and next prime (20373345563).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20373345537 - 2⁸ = 20373345281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20373345737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5666914 + ... + 5670507.

It is an arithmetic number, because the mean of its divisors is an integer number (3401226600).

Almost surely, 2^20373345537 is an apocalyptic number.

It is an amenable number.

20373345537 is a deficient number, since it is larger than the sum of its proper divisors (6836467263).

20373345537 is a wasteful number, since it uses less digits than its factorization.

20373345537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11338023.

The product of its (nonzero) digits is 793800, while the sum is 42.

The spelling of 20373345537 in words is "twenty billion, three hundred seventy-three million, three hundred forty-five thousand, five hundred thirty-seven".