161180177874 has 8 divisors (see below), whose sum is σ = 322360355760. Its totient is φ = 53726725956.

The previous prime is 161180177869. The next prime is 161180177881. The reversal of 161180177874 is 478771081161.

It is a happy number.

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

161180177874 is an admirable number.

It is a super-3 number, since 3×161180177874³ (a number of 35 digits) contains 333 as substring.

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, 13431681484 + ... + 13431681495.

It is an arithmetic number, because the mean of its divisors is an integer number (40295044470).

Almost surely, 2^161180177874 is an apocalyptic number.

161180177874 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.

161180177874 is a wasteful number, since it uses less digits than its factorization.

161180177874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26863362984.

The product of its (nonzero) digits is 526848, while the sum is 51.

The spelling of 161180177874 in words is "one hundred sixty-one billion, one hundred eighty million, one hundred seventy-seven thousand, eight hundred seventy-four".