120615680917 has 4 divisors (see below), whose sum is σ = 121565410816. Its totient is φ = 119665951020.

The previous prime is 120615680891. The next prime is 120615680951. The reversal of 120615680917 is 719086516021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120615680917 - 2⁷ = 120615680789 is a prime.

It is a super-3 number, since 3×120615680917³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120615683917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474864759 + ... + 474865012.

It is an arithmetic number, because the mean of its divisors is an integer number (30391352704).

Almost surely, 2^120615680917 is an apocalyptic number.

It is an amenable number.

120615680917 is a deficient number, since it is larger than the sum of its proper divisors (949729899).

120615680917 is an equidigital number, since it uses as much as digits as its factorization.

120615680917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949729898.

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 120615680917 in words is "one hundred twenty billion, six hundred fifteen million, six hundred eighty thousand, nine hundred seventeen".