20937553373 has 8 divisors (see below), whose sum is σ = 23326945920. Its totient is φ = 18629157280.

The previous prime is 20937553339. The next prime is 20937553393. The reversal of 20937553373 is 37335573902.

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 20937553373 - 2⁶ = 20937553309 is a prime.

It is a super-2 number, since 2×20937553373² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20937553393) 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, 20248568 + ... + 20249601.

It is an arithmetic number, because the mean of its divisors is an integer number (2915868240).

Almost surely, 2^20937553373 is an apocalyptic number.

It is an amenable number.

20937553373 is a deficient number, since it is larger than the sum of its proper divisors (2389392547).

20937553373 is a wasteful number, since it uses less digits than its factorization.

20937553373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40498227.

The product of its (nonzero) digits is 1786050, while the sum is 47.

The spelling of 20937553373 in words is "twenty billion, nine hundred thirty-seven million, five hundred fifty-three thousand, three hundred seventy-three".