666160354 has 8 divisors (see below), whose sum is σ = 999680220. Its totient is φ = 332933616.

The previous prime is 666160331. The next prime is 666160357. The reversal of 666160354 is 453061666.

It can be written as a sum of positive squares in 2 ways, for example, as 525097225 + 141063129 = 22915^2 + 11877^2 .

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 (666160357) 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, 67509 + ... + 76744.

Almost surely, 2^666160354 is an apocalyptic number.

666160354 is a deficient number, since it is larger than the sum of its proper divisors (333519866).

666160354 is a wasteful number, since it uses less digits than its factorization.

666160354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146564.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 666160354 is about 25810.0824097871. The cubic root of 666160354 is about 873.3592562992.

The spelling of 666160354 in words is "six hundred sixty-six million, one hundred sixty thousand, three hundred fifty-four".