120625656065 has 4 divisors (see below), whose sum is σ = 144750787284. Its totient is φ = 96500524848.

The previous prime is 120625656061. The next prime is 120625656071. The reversal of 120625656065 is 560656526021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560656526021 = 72227 ⋅7762423.

It can be written as a sum of positive squares in 2 ways, for example, as 34780758016 + 85844898049 = 186496^2 + 292993^2 .

It is a cyclic number.

It is not a de Polignac number, because 120625656065 - 2² = 120625656061 is a prime.

It is a super-2 number, since 2×120625656065² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120625656061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12062565602 + ... + 12062565611.

It is an arithmetic number, because the mean of its divisors is an integer number (36187696821).

Almost surely, 2^120625656065 is an apocalyptic number.

It is an amenable number.

120625656065 is a deficient number, since it is larger than the sum of its proper divisors (24125131219).

120625656065 is an equidigital number, since it uses as much as digits as its factorization.

120625656065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24125131218.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 120625656065 in words is "one hundred twenty billion, six hundred twenty-five million, six hundred fifty-six thousand, sixty-five".