63163169538 has 64 divisors (see below), whose sum is σ = 149779660800. Its totient is φ = 17376638400.

The previous prime is 63163169533. The next prime is 63163169557. The reversal of 63163169538 is 83596136136.

63163169538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63163169538² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63163169533) 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, 137208 + ... + 380988.

It is an arithmetic number, because the mean of its divisors is an integer number (2340307200).

Almost surely, 2^63163169538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63163169538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74889830400).

63163169538 is an abundant number, since it is smaller than the sum of its proper divisors (86616491262).

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

63163169538 is a wasteful number, since it uses less digits than its factorization.

63163169538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244023.

The product of its digits is 2099520, while the sum is 51.

The spelling of 63163169538 in words is "sixty-three billion, one hundred sixty-three million, one hundred sixty-nine thousand, five hundred thirty-eight".