120504116665 has 4 divisors (see below), whose sum is σ = 144604940004. Its totient is φ = 96403293328.

The previous prime is 120504116659. The next prime is 120504116693. The reversal of 120504116665 is 566611405021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 566611405021 = 102533 ⋅5526137.

It can be written as a sum of positive squares in 2 ways, for example, as 95865163641 + 24638953024 = 309621^2 + 156968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120504116665 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, 12050411662 + ... + 12050411671.

It is an arithmetic number, because the mean of its divisors is an integer number (36151235001).

Almost surely, 2^120504116665 is an apocalyptic number.

It is an amenable number.

120504116665 is a deficient number, since it is larger than the sum of its proper divisors (24100823339).

120504116665 is an equidigital number, since it uses as much as digits as its factorization.

120504116665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24100823338.

The product of its (nonzero) digits is 43200, while the sum is 37.

It can be divided in two parts, 120504 and 116665, that added together give a square (237169 = 487²).

The spelling of 120504116665 in words is "one hundred twenty billion, five hundred four million, one hundred sixteen thousand, six hundred sixty-five".