20555046115177 has 8 divisors (see below), whose sum is σ = 23580802498176. Its totient is φ = 17551620038112.

The previous prime is 20555046115159. The next prime is 20555046115207. The reversal of 20555046115177 is 77151164055502.

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 20555046115177 - 2²⁷ = 20554911897449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20555046115177.

It is not an unprimeable number, because it can be changed into a prime (20555046116177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5582574508 + ... + 5582578189.

It is an arithmetic number, because the mean of its divisors is an integer number (2947600312272).

Almost surely, 2^{20555046115177} is an apocalyptic number.

It is an amenable number.

20555046115177 is a deficient number, since it is larger than the sum of its proper divisors (3025756382999).

20555046115177 is a wasteful number, since it uses less digits than its factorization.

20555046115177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11165152967.

The product of its (nonzero) digits is 1470000, while the sum is 49.

The spelling of 20555046115177 in words is "twenty trillion, five hundred fifty-five billion, forty-six million, one hundred fifteen thousand, one hundred seventy-seven".