162216623290 has 8 divisors (see below), whose sum is σ = 291989921940. Its totient is φ = 64886649312.

The previous prime is 162216623263. The next prime is 162216623291. The reversal of 162216623290 is 92326612261.

It can be written as a sum of positive squares in 2 ways, for example, as 157370096601 + 4846526689 = 396699^2 + 69617^2 .

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 (162216623291) 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, 8110831155 + ... + 8110831174.

Almost surely, 2^162216623290 is an apocalyptic number.

162216623290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

162216623290 is a deficient number, since it is larger than the sum of its proper divisors (129773298650).

162216623290 is a wasteful number, since it uses less digits than its factorization.

162216623290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16221662336.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 162216623290 in words is "one hundred sixty-two billion, two hundred sixteen million, six hundred twenty-three thousand, two hundred ninety".