659890168042 has 32 divisors (see below), whose sum is σ = 1133903318400. Its totient is φ = 282144752448.

The previous prime is 659890168001. The next prime is 659890168043. The reversal of 659890168042 is 240861098956.

It is a super-2 number, since 2×659890168042² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (659890168043) 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, 19857813 + ... + 19891015.

It is an arithmetic number, because the mean of its divisors is an integer number (35434478700).

Almost surely, 2^659890168042 is an apocalyptic number.

659890168042 is a deficient number, since it is larger than the sum of its proper divisors (474013150358).

659890168042 is a wasteful number, since it uses less digits than its factorization.

659890168042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36510.

The product of its (nonzero) digits is 7464960, while the sum is 58.

The spelling of 659890168042 in words is "six hundred fifty-nine billion, eight hundred ninety million, one hundred sixty-eight thousand, forty-two".