20116755457506 has 48 divisors (see below), whose sum is σ = 44141577480000. Its totient is φ = 6620697357984.

The previous prime is 20116755457483. The next prime is 20116755457507. The reversal of 20116755457506 is 60575455761102.

20116755457506 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 67 + 5 + 5 + 4 + 575 + 0 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (20116755457507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22009156 + ... + 22904943.

It is an arithmetic number, because the mean of its divisors is an integer number (919616197500).

Almost surely, 2^{20116755457506} is an apocalyptic number.

20116755457506 is an abundant number, since it is smaller than the sum of its proper divisors (24024822022494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20116755457506 is a wasteful number, since it uses less digits than its factorization.

20116755457506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44914423 (or 44914420 counting only the distinct ones).

The product of its (nonzero) digits is 8820000, while the sum is 54.

The spelling of 20116755457506 in words is "twenty trillion, one hundred sixteen billion, seven hundred fifty-five million, four hundred fifty-seven thousand, five hundred six".