63164128272 has 80 divisors (see below), whose sum is σ = 186629638272. Its totient is φ = 18032855040.

The previous prime is 63164128259. The next prime is 63164128277. The reversal of 63164128272 is 27282146136.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (63164128277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363322 + ... + 508262.

Almost surely, 2^63164128272 is an apocalyptic number.

It is an amenable number.

63164128272 is an abundant number, since it is smaller than the sum of its proper divisors (123465510000).

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

63164128272 is a wasteful number, since it uses less digits than its factorization.

63164128272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146256 (or 146250 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The spelling of 63164128272 in words is "sixty-three billion, one hundred sixty-four million, one hundred twenty-eight thousand, two hundred seventy-two".