20160044007657 has 16 divisors (see below), whose sum is σ = 28497080520192. Its totient is φ = 12654953516160.

The previous prime is 20160044007643. The next prime is 20160044007667. The reversal of 20160044007657 is 75670044006102.

It is not a de Polignac number, because 20160044007657 - 2⁷ = 20160044007529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20160044007637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2929383948 + ... + 2929390829.

It is an arithmetic number, because the mean of its divisors is an integer number (1781067532512).

Almost surely, 2^{20160044007657} is an apocalyptic number.

It is an amenable number.

20160044007657 is a deficient number, since it is larger than the sum of its proper divisors (8337036512535).

20160044007657 is a wasteful number, since it uses less digits than its factorization.

20160044007657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5858774848.

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 20160044007657 in words is "twenty trillion, one hundred sixty billion, forty-four million, seven thousand, six hundred fifty-seven".