161302666 has 32 divisors (see below), whose sum is σ = 295873920. Its totient is φ = 64411200.

The previous prime is 161302639. The next prime is 161302667. The reversal of 161302666 is 666203161.

161302666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (161302667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11256 + ... + 21196.

It is an arithmetic number, because the mean of its divisors is an integer number (9246060).

Almost surely, 2^161302666 is an apocalyptic number.

161302666 is a deficient number, since it is larger than the sum of its proper divisors (134571254).

161302666 is a wasteful number, since it uses less digits than its factorization.

161302666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10030.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 161302666 is about 12700.4986516278. The cubic root of 161302666 is about 544.3528676770.

The spelling of 161302666 in words is "one hundred sixty-one million, three hundred two thousand, six hundred sixty-six".