162216290 has 16 divisors (see below), whose sum is σ = 292283640. Its totient is φ = 64821120.

The previous prime is 162216289. The next prime is 162216337. The reversal of 162216290 is 92612261.

It is a happy number.

162216290 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 4 ways, for example, as 146192281 + 16024009 = 12091^2 + 4003^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2966 + ... + 18254.

Almost surely, 2^162216290 is an apocalyptic number.

162216290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

162216290 is a deficient number, since it is larger than the sum of its proper divisors (130067350).

162216290 is a wasteful number, since it uses less digits than its factorization.

162216290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16357.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 162216290 is about 12736.4159008726. The cubic root of 162216290 is about 545.3786779918.

The spelling of 162216290 in words is "one hundred sixty-two million, two hundred sixteen thousand, two hundred ninety".