628660160557 has 96 divisors (see below), whose sum is σ = 792320385024. Its totient is φ = 494424120960.

The previous prime is 628660160537. The next prime is 628660160561. The reversal of 628660160557 is 755061066826.

It is a de Polignac number, because none of the positive numbers 2^k-628660160557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628660160537) 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 95 ways as a sum of consecutive naturals, for example, 540549858 + ... + 540551020.

It is an arithmetic number, because the mean of its divisors is an integer number (8253337344).

Almost surely, 2^628660160557 is an apocalyptic number.

628660160557 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

628660160557 is a deficient number, since it is larger than the sum of its proper divisors (163660224467).

628660160557 is a wasteful number, since it uses less digits than its factorization.

628660160557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511 (or 1500 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 628660160557 in words is "six hundred twenty-eight billion, six hundred sixty million, one hundred sixty thousand, five hundred fifty-seven".