63386166872 has 32 divisors (see below), whose sum is σ = 138986284800. Its totient is φ = 26533743264.

The previous prime is 63386166869. The next prime is 63386166941. The reversal of 63386166872 is 27866168336.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13159172 + ... + 13163987.

It is an arithmetic number, because the mean of its divisors is an integer number (4343321400).

Almost surely, 2^63386166872 is an apocalyptic number.

It is an amenable number.

63386166872 is an abundant number, since it is smaller than the sum of its proper divisors (75600117928).

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

63386166872 is a wasteful number, since it uses less digits than its factorization.

63386166872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26323215 (or 26323211 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 56.

The spelling of 63386166872 in words is "sixty-three billion, three hundred eighty-six million, one hundred sixty-six thousand, eight hundred seventy-two".