659659093636 has 27 divisors (see below), whose sum is σ = 1174471836951. Its totient is φ = 324192108264.

The previous prime is 659659093603. The next prime is 659659093637. The reversal of 659659093636 is 636390956956.

The square root of 659659093636 is 812194.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (659659093637) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 95835451 + ... + 95842333.

Almost surely, 2^659659093636 is an apocalyptic number.

659659093636 is the 812194-th square number.

It is an amenable number.

659659093636 is a deficient number, since it is larger than the sum of its proper divisors (514812743315).

659659093636 is an frugal number, since it uses more digits than its factorization.

659659093636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13888 (or 6944 counting only the distinct ones).

The product of its (nonzero) digits is 212576400, while the sum is 67.

The spelling of 659659093636 in words is "six hundred fifty-nine billion, six hundred fifty-nine million, ninety-three thousand, six hundred thirty-six".