161030112195 has 16 divisors (see below), whose sum is σ = 257671746720. Its totient is φ = 85874870784.

The previous prime is 161030112193. The next prime is 161030112203. The reversal of 161030112195 is 591211030161.

It is not a de Polignac number, because 161030112195 - 2¹ = 161030112193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161030112193) 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, 319600 + ... + 651309.

It is an arithmetic number, because the mean of its divisors is an integer number (16104484170).

Almost surely, 2^161030112195 is an apocalyptic number.

161030112195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161030112195 is a deficient number, since it is larger than the sum of its proper divisors (96641634525).

161030112195 is a wasteful number, since it uses less digits than its factorization.

161030112195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981974.

The product of its (nonzero) digits is 1620, while the sum is 30.

The spelling of 161030112195 in words is "one hundred sixty-one billion, thirty million, one hundred twelve thousand, one hundred ninety-five".