659436545042 has 18 divisors (see below), whose sum is σ = 1087273644597. Its totient is φ = 299738142000.

The previous prime is 659436544999. The next prime is 659436545063. The reversal of 659436545042 is 240545634956.

It can be written as a sum of positive squares in 2 ways, for example, as 564633519241 + 94803025801 = 751421^2 + 307901^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=574211.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 12606542 + ... + 12658742.

Almost surely, 2^659436545042 is an apocalyptic number.

659436545042 is a deficient number, since it is larger than the sum of its proper divisors (427837099555).

659436545042 is an frugal number, since it uses more digits than its factorization.

659436545042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104426 (or 52214 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 53.

The spelling of 659436545042 in words is "six hundred fifty-nine billion, four hundred thirty-six million, five hundred forty-five thousand, forty-two".