120556204816265 has 16 divisors (see below), whose sum is σ = 148644820452288. Its totient is φ = 93795747183936.

The previous prime is 120556204816217. The next prime is 120556204816297. The reversal of 120556204816265 is 562618402655021.

It is a cyclic number.

It is not a de Polignac number, because 120556204816265 - 2⁸ = 120556204816009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147494207 + ... + 148309316.

It is an arithmetic number, because the mean of its divisors is an integer number (9290301278268).

Almost surely, 2^{120556204816265} is an apocalyptic number.

It is an amenable number.

120556204816265 is a deficient number, since it is larger than the sum of its proper divisors (28088615636023).

120556204816265 is a wasteful number, since it uses less digits than its factorization.

120556204816265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295805768.

The product of its (nonzero) digits is 6912000, while the sum is 53.

The spelling of 120556204816265 in words is "one hundred twenty trillion, five hundred fifty-six billion, two hundred four million, eight hundred sixteen thousand, two hundred sixty-five".