120045406613657 has 16 divisors (see below), whose sum is σ = 140677922313600. Its totient is φ = 100315349088768.

The previous prime is 120045406613653. The next prime is 120045406613659. The reversal of 120045406613657 is 756316604540021.

It is a cyclic number.

It is not a de Polignac number, because 120045406613657 - 2² = 120045406613653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120045406613653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1319337782 + ... + 1319428767.

It is an arithmetic number, because the mean of its divisors is an integer number (8792370144600).

Almost surely, 2^{120045406613657} is an apocalyptic number.

It is an amenable number.

120045406613657 is a deficient number, since it is larger than the sum of its proper divisors (20632515699943).

120045406613657 is an equidigital number, since it uses as much as digits as its factorization.

120045406613657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2638766720.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 120045406613657 in words is "one hundred twenty trillion, forty-five billion, four hundred six million, six hundred thirteen thousand, six hundred fifty-seven".