659677157591 has 2 divisors, whose sum is σ = 659677157592. Its totient is φ = 659677157590.

The previous prime is 659677157537. The next prime is 659677157647. The reversal of 659677157591 is 195751776956.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-659677157591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (659677157791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329838578795 + 329838578796.

It is an arithmetic number, because the mean of its divisors is an integer number (329838578796).

Almost surely, 2^659677157591 is an apocalyptic number.

659677157591 is a deficient number, since it is larger than the sum of its proper divisors (1).

659677157591 is an equidigital number, since it uses as much as digits as its factorization.

659677157591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 125023500, while the sum is 68.

The spelling of 659677157591 in words is "six hundred fifty-nine billion, six hundred seventy-seven million, one hundred fifty-seven thousand, five hundred ninety-one".