130557562257 has 4 divisors (see below), whose sum is σ = 174076749680. Its totient is φ = 87038374836.

The previous prime is 130557562249. The next prime is 130557562279. The reversal of 130557562257 is 752265755031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 130557562257 - 2³ = 130557562249 is a prime.

It is the 361328-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130557562207) by changing a digit.

It is a nontrivial repunit in base 361327.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21759593707 + ... + 21759593712.

It is an arithmetic number, because the mean of its divisors is an integer number (43519187420).

Almost surely, 2^130557562257 is an apocalyptic number.

It is an amenable number.

130557562257 is a deficient number, since it is larger than the sum of its proper divisors (43519187423).

130557562257 is an equidigital number, since it uses as much as digits as its factorization.

130557562257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43519187422.

The product of its (nonzero) digits is 2205000, while the sum is 48.

The spelling of 130557562257 in words is "one hundred thirty billion, five hundred fifty-seven million, five hundred sixty-two thousand, two hundred fifty-seven".