63081603612 has 36 divisors (see below), whose sum is σ = 159465098520. Its totient is φ = 21026037792.

The previous prime is 63081603593. The next prime is 63081603647. The reversal of 63081603612 is 21630618036.

63081603612 is a `hidden beast` number, since 6 + 30 + 8 + 1 + 6 + 0 + 3 + 612 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×63081603612² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 828583 + ... + 901505.

It is an arithmetic number, because the mean of its divisors is an integer number (4429586070).

Almost surely, 2^63081603612 is an apocalyptic number.

It is an amenable number.

63081603612 is an abundant number, since it is smaller than the sum of its proper divisors (96383494908).

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

63081603612 is a wasteful number, since it uses less digits than its factorization.

63081603612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96962 (or 96957 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 63081603612 in words is "sixty-three billion, eighty-one million, six hundred three thousand, six hundred twelve".