161180394 has 8 divisors (see below), whose sum is σ = 322360800. Its totient is φ = 53726796.

The previous prime is 161180329. The next prime is 161180407. The reversal of 161180394 is 493081161.

It is a sphenic number, since it is the product of 3 distinct primes.

161180394 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13431694 + ... + 13431705.

It is an arithmetic number, because the mean of its divisors is an integer number (40295100).

Almost surely, 2^161180394 is an apocalyptic number.

161180394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161180394 is a wasteful number, since it uses less digits than its factorization.

161180394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26863404.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 161180394 is about 12695.6840697932. The cubic root of 161180394 is about 544.2152879323.

The spelling of 161180394 in words is "one hundred sixty-one million, one hundred eighty thousand, three hundred ninety-four".