20116755475365 has 32 divisors (see below), whose sum is σ = 32420143203840. Its totient is φ = 10651166558784.

The previous prime is 20116755475363. The next prime is 20116755475417. The reversal of 20116755475365 is 56357455761102.

It is a happy number.

It is not a de Polignac number, because 20116755475365 - 2¹ = 20116755475363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20116755475363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39249882 + ... + 39759108.

It is an arithmetic number, because the mean of its divisors is an integer number (1013129475120).

Almost surely, 2^{20116755475365} is an apocalyptic number.

It is an amenable number.

20116755475365 is a deficient number, since it is larger than the sum of its proper divisors (12303387728475).

20116755475365 is a wasteful number, since it uses less digits than its factorization.

20116755475365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528321.

The product of its (nonzero) digits is 26460000, while the sum is 57.

The spelling of 20116755475365 in words is "twenty trillion, one hundred sixteen billion, seven hundred fifty-five million, four hundred seventy-five thousand, three hundred sixty-five".