161338082895 has 24 divisors (see below), whose sum is σ = 305075648592. Its totient is φ = 78224524800.

The previous prime is 161338082879. The next prime is 161338082923. The reversal of 161338082895 is 598280833161.

It is not a de Polignac number, because 161338082895 - 2⁴ = 161338082879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162967266 + ... + 162968255.

It is an arithmetic number, because the mean of its divisors is an integer number (12711485358).

Almost surely, 2^161338082895 is an apocalyptic number.

161338082895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161338082895 is a deficient number, since it is larger than the sum of its proper divisors (143737565697).

161338082895 is a wasteful number, since it uses less digits than its factorization.

161338082895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325935543 (or 325935540 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 161338082895 in words is "one hundred sixty-one billion, three hundred thirty-eight million, eighty-two thousand, eight hundred ninety-five".