20116755457523 has 8 divisors (see below), whose sum is σ = 20384670772368. Its totient is φ = 19849448351584.

The previous prime is 20116755457507. The next prime is 20116755457621. The reversal of 20116755457523 is 32575455761102.

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 20116755457523 - 2⁴ = 20116755457507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20116755457723) 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, 151985636 + ... + 152117937.

It is an arithmetic number, because the mean of its divisors is an integer number (2548083846546).

Almost surely, 2^{20116755457523} is an apocalyptic number.

20116755457523 is a deficient number, since it is larger than the sum of its proper divisors (267915314845).

20116755457523 is an equidigital number, since it uses as much as digits as its factorization.

20116755457523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304104453.

The product of its (nonzero) digits is 8820000, while the sum is 53.

The spelling of 20116755457523 in words is "twenty trillion, one hundred sixteen billion, seven hundred fifty-five million, four hundred fifty-seven thousand, five hundred twenty-three".