161134691115 has 16 divisors (see below), whose sum is σ = 257826302208. Its totient is φ = 85934903136.

The previous prime is 161134691089. The next prime is 161134691129. The reversal of 161134691115 is 511196431161.

It is not a de Polignac number, because 161134691115 - 2⁹ = 161134690603 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167272 + ... + 591818.

It is an arithmetic number, because the mean of its divisors is an integer number (16114143888).

Almost surely, 2^161134691115 is an apocalyptic number.

161134691115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161134691115 is a deficient number, since it is larger than the sum of its proper divisors (96691611093).

161134691115 is a wasteful number, since it uses less digits than its factorization.

161134691115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449858.

The product of its digits is 19440, while the sum is 39.

The spelling of 161134691115 in words is "one hundred sixty-one billion, one hundred thirty-four million, six hundred ninety-one thousand, one hundred fifteen".