162639921050 has 24 divisors (see below), whose sum is σ = 302931057600. Its totient is φ = 64965472880.

The previous prime is 162639921013. The next prime is 162639921061. The reversal of 162639921050 is 50129936261.

It is a junction number, because it is equal to n+sod(n) for n = 162639920992 and 162639921010.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2226080 + ... + 2297979.

It is an arithmetic number, because the mean of its divisors is an integer number (12622127400).

Almost surely, 2^162639921050 is an apocalyptic number.

162639921050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

162639921050 is a deficient number, since it is larger than the sum of its proper divisors (140291136550).

162639921050 is a wasteful number, since it uses less digits than its factorization.

162639921050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4524790 (or 4524785 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 44.

The spelling of 162639921050 in words is "one hundred sixty-two billion, six hundred thirty-nine million, nine hundred twenty-one thousand, fifty".