120162056645 has 4 divisors (see below), whose sum is σ = 144194467980. Its totient is φ = 96129645312.

The previous prime is 120162056617. The next prime is 120162056647. The reversal of 120162056645 is 546650261021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 546650261021 = 71 ⋅7699299451.

It can be written as a sum of positive squares in 2 ways, for example, as 87484625284 + 32677431361 = 295778^2 + 180769^2 .

It is a cyclic number.

It is not a de Polignac number, because 120162056645 - 2⁸ = 120162056389 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120162056599 and 120162056608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120162056647) 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, 12016205660 + ... + 12016205669.

It is an arithmetic number, because the mean of its divisors is an integer number (36048616995).

Almost surely, 2^120162056645 is an apocalyptic number.

It is an amenable number.

120162056645 is a deficient number, since it is larger than the sum of its proper divisors (24032411335).

120162056645 is an equidigital number, since it uses as much as digits as its factorization.

120162056645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24032411334.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 120162056645 in words is "one hundred twenty billion, one hundred sixty-two million, fifty-six thousand, six hundred forty-five".