161376074939 has 4 divisors (see below), whose sum is σ = 161429144760. Its totient is φ = 161323005120.

The previous prime is 161376074929. The next prime is 161376074953. The reversal of 161376074939 is 939470673161.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161376074939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161376074929) 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, 26530349 + ... + 26536430.

It is an arithmetic number, because the mean of its divisors is an integer number (40357286190).

Almost surely, 2^161376074939 is an apocalyptic number.

161376074939 is a deficient number, since it is larger than the sum of its proper divisors (53069821).

161376074939 is an equidigital number, since it uses as much as digits as its factorization.

161376074939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53069820.

The product of its (nonzero) digits is 5143824, while the sum is 56.

The spelling of 161376074939 in words is "one hundred sixty-one billion, three hundred seventy-six million, seventy-four thousand, nine hundred thirty-nine".