163332637490 has 64 divisors (see below), whose sum is σ = 328463372160. Its totient is φ = 57963171840.

The previous prime is 163332637441. The next prime is 163332637499. The reversal of 163332637490 is 94736233361.

163332637490 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (163332637499) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5799122 + ... + 5827218.

It is an arithmetic number, because the mean of its divisors is an integer number (5132240190).

Almost surely, 2^163332637490 is an apocalyptic number.

163332637490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163332637490 is an abundant number, since it is smaller than the sum of its proper divisors (165130734670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163332637490 is a wasteful number, since it uses less digits than its factorization.

163332637490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29387.

The product of its (nonzero) digits is 1469664, while the sum is 47.

The spelling of 163332637490 in words is "one hundred sixty-three billion, three hundred thirty-two million, six hundred thirty-seven thousand, four hundred ninety".