20373656664707 has 8 divisors (see below), whose sum is σ = 20377213500000. Its totient is φ = 20370100143744.

The previous prime is 20373656664671. The next prime is 20373656664727. The reversal of 20373656664707 is 70746665637302.

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

It is a cyclic number.

It is not a de Polignac number, because 20373656664707 - 2²² = 20373652470403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20373656664707.

It is not an unprimeable number, because it can be changed into a prime (20373656664727) 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, 155163419 + ... + 155294667.

It is an arithmetic number, because the mean of its divisors is an integer number (2547151687500).

Almost surely, 2^{20373656664707} is an apocalyptic number.

20373656664707 is a deficient number, since it is larger than the sum of its proper divisors (3556835293).

20373656664707 is a wasteful number, since it uses less digits than its factorization.

20373656664707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157165.

The product of its (nonzero) digits is 160030080, while the sum is 62.

The spelling of 20373656664707 in words is "twenty trillion, three hundred seventy-three billion, six hundred fifty-six million, six hundred sixty-four thousand, seven hundred seven".