130549864657 has 2 divisors, whose sum is σ = 130549864658. Its totient is φ = 130549864656.

The previous prime is 130549864631. The next prime is 130549864661. The reversal of 130549864657 is 756468945031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95021761536 + 35528103121 = 308256^2 + 188489^2 .

It is a cyclic number.

It is not a de Polignac number, because 130549864657 - 2²³ = 130541476049 is a prime.

It is a super-2 number, since 2×130549864657² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (130549864157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65274932328 + 65274932329.

It is an arithmetic number, because the mean of its divisors is an integer number (65274932329).

Almost surely, 2^130549864657 is an apocalyptic number.

It is an amenable number.

130549864657 is a deficient number, since it is larger than the sum of its proper divisors (1).

130549864657 is an equidigital number, since it uses as much as digits as its factorization.

130549864657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21772800, while the sum is 58.

The spelling of 130549864657 in words is "one hundred thirty billion, five hundred forty-nine million, eight hundred sixty-four thousand, six hundred fifty-seven".