161379737313 has 4 divisors (see below), whose sum is σ = 215172983088. Its totient is φ = 107586491540.

The previous prime is 161379737303. The next prime is 161379737329. The reversal of 161379737313 is 313737973161.

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 not a de Polignac number, because 161379737313 - 2⁹ = 161379736801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161379737303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26896622883 + ... + 26896622888.

It is an arithmetic number, because the mean of its divisors is an integer number (53793245772).

Almost surely, 2^161379737313 is an apocalyptic number.

It is an amenable number.

161379737313 is a deficient number, since it is larger than the sum of its proper divisors (53793245775).

161379737313 is an equidigital number, since it uses as much as digits as its factorization.

161379737313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53793245774.

The product of its digits is 1500282, while the sum is 51.

The spelling of 161379737313 in words is "one hundred sixty-one billion, three hundred seventy-nine million, seven hundred thirty-seven thousand, three hundred thirteen".