161216074 has 8 divisors (see below), whose sum is σ = 242216640. Its totient is φ = 80477196.

The previous prime is 161216071. The next prime is 161216093. The reversal of 161216074 is 470612161.

161216074 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (161216071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63874 + ... + 66349.

It is an arithmetic number, because the mean of its divisors is an integer number (30277080).

Almost surely, 2^161216074 is an apocalyptic number.

161216074 is a deficient number, since it is larger than the sum of its proper divisors (81000566).

161216074 is a wasteful number, since it uses less digits than its factorization.

161216074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130844.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 161216074 is about 12697.0891939846. The cubic root of 161216074 is about 544.2554420486.

The spelling of 161216074 in words is "one hundred sixty-one million, two hundred sixteen thousand, seventy-four".