12365161057 has 4 divisors (see below), whose sum is σ = 12366114736. Its totient is φ = 12364207380.

The previous prime is 12365161043. The next prime is 12365161063. The reversal of 12365161057 is 75016156321.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12365161057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12365161097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457119 + ... + 483412.

It is an arithmetic number, because the mean of its divisors is an integer number (3091528684).

Almost surely, 2^12365161057 is an apocalyptic number.

It is an amenable number.

12365161057 is a deficient number, since it is larger than the sum of its proper divisors (953679).

12365161057 is an equidigital number, since it uses as much as digits as its factorization.

12365161057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953678.

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 12365161057 in words is "twelve billion, three hundred sixty-five million, one hundred sixty-one thousand, fifty-seven".