162166568 has 8 divisors (see below), whose sum is σ = 304062330. Its totient is φ = 81083280.

The previous prime is 162166561. The next prime is 162166573. The reversal of 162166568 is 865661261.

It is a happy number.

162166568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 156700324 + 5466244 = 12518^2 + 2338^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (162166561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10135403 + ... + 10135418.

Almost surely, 2^162166568 is an apocalyptic number.

It is an amenable number.

162166568 is a deficient number, since it is larger than the sum of its proper divisors (141895762).

162166568 is a wasteful number, since it uses less digits than its factorization.

162166568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20270827 (or 20270823 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 162166568 is about 12734.4637892610. The cubic root of 162166568 is about 545.3229497421.

The spelling of 162166568 in words is "one hundred sixty-two million, one hundred sixty-six thousand, five hundred sixty-eight".