161313155146 has 64 divisors (see below), whose sum is σ = 296468960256. Its totient is φ = 64824883200.

The previous prime is 161313155137. The next prime is 161313155183. The reversal of 161313155146 is 641551313161.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 766216 + ... + 953788.

It is an arithmetic number, because the mean of its divisors is an integer number (4632327504).

Almost surely, 2^161313155146 is an apocalyptic number.

161313155146 is a deficient number, since it is larger than the sum of its proper divisors (135155805110).

161313155146 is a wasteful number, since it uses less digits than its factorization.

161313155146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187727.

The product of its digits is 32400, while the sum is 37.

The spelling of 161313155146 in words is "one hundred sixty-one billion, three hundred thirteen million, one hundred fifty-five thousand, one hundred forty-six".