162655666 has 4 divisors (see below), whose sum is σ = 243983502. Its totient is φ = 81327832.

The previous prime is 162655621. The next prime is 162655687. The reversal of 162655666 is 666556261.

162655666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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., 101425041 + 61230625 = 10071^2 + 7825^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40663915 + ... + 40663918.

Almost surely, 2^162655666 is an apocalyptic number.

162655666 is a deficient number, since it is larger than the sum of its proper divisors (81327836).

162655666 is an equidigital number, since it uses as much as digits as its factorization.

162655666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81327835.

The product of its digits is 388800, while the sum is 43.

The square root of 162655666 is about 12753.6530453043. The cubic root of 162655666 is about 545.8706349091.

The spelling of 162655666 in words is "one hundred sixty-two million, six hundred fifty-five thousand, six hundred sixty-six".