161379737311 has 16 divisors (see below), whose sum is σ = 175314714624. Its totient is φ = 147664115424.

The previous prime is 161379737303. The next prime is 161379737329. The reversal of 161379737311 is 113737973161.

It is a cyclic number.

It is not a de Polignac number, because 161379737311 - 2³ = 161379737303 is a prime.

It is a super-2 number, since 2×161379737311² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161379717311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1878090 + ... + 1962136.

It is an arithmetic number, because the mean of its divisors is an integer number (10957169664).

Almost surely, 2^161379737311 is an apocalyptic number.

161379737311 is a deficient number, since it is larger than the sum of its proper divisors (13934977313).

161379737311 is a wasteful number, since it uses less digits than its factorization.

161379737311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85350.

The product of its digits is 500094, while the sum is 49.

The spelling of 161379737311 in words is "one hundred sixty-one billion, three hundred seventy-nine million, seven hundred thirty-seven thousand, three hundred eleven".