161314830874 has 4 divisors (see below), whose sum is σ = 241972246314. Its totient is φ = 80657415436.

The previous prime is 161314830847. The next prime is 161314830889. The reversal of 161314830874 is 478038413161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 156346695649 + 4968135225 = 395407^2 + 70485^2 .

It is a super-3 number, since 3×161314830874³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40328707717 + ... + 40328707720.

Almost surely, 2^161314830874 is an apocalyptic number.

161314830874 is a deficient number, since it is larger than the sum of its proper divisors (80657415440).

161314830874 is an equidigital number, since it uses as much as digits as its factorization.

161314830874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80657415439.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 161314830874 in words is "one hundred sixty-one billion, three hundred fourteen million, eight hundred thirty thousand, eight hundred seventy-four".