164501666 has 16 divisors (see below), whose sum is σ = 282170304. Its totient is φ = 70458864.

The previous prime is 164501663. The next prime is 164501699. The reversal of 164501666 is 666105461.

It is not an unprimeable number, because it can be changed into a prime (164501663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37736 + ... + 41868.

It is an arithmetic number, because the mean of its divisors is an integer number (17635644).

Almost surely, 2^164501666 is an apocalyptic number.

164501666 is a deficient number, since it is larger than the sum of its proper divisors (117668638).

164501666 is a wasteful number, since it uses less digits than its factorization.

164501666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6985.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 164501666 is about 12825.8202856581. The cubic root of 164501666 is about 547.9279235483.

The spelling of 164501666 in words is "one hundred sixty-four million, five hundred one thousand, six hundred sixty-six".