120016997755 has 4 divisors (see below), whose sum is σ = 144020397312. Its totient is φ = 96013598200.

The previous prime is 120016997743. The next prime is 120016997773. The reversal of 120016997755 is 557799610021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 120016997755 - 2²⁷ = 119882780027 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12001699771 + ... + 12001699780.

It is an arithmetic number, because the mean of its divisors is an integer number (36005099328).

Almost surely, 2^120016997755 is an apocalyptic number.

120016997755 is a deficient number, since it is larger than the sum of its proper divisors (24003399557).

120016997755 is an equidigital number, since it uses as much as digits as its factorization.

120016997755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24003399556.

The product of its (nonzero) digits is 1190700, while the sum is 52.

The spelling of 120016997755 in words is "one hundred twenty billion, sixteen million, nine hundred ninety-seven thousand, seven hundred fifty-five".