63556091492712 has 256 divisors, whose sum is σ = 199710947520000. Its totient is φ = 16748372680704.

The previous prime is 63556091492683. The next prime is 63556091492749. The reversal of 63556091492712 is 21729419065536.

It is a happy number.

It is a super-2 number, since 2×63556091492712² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 131281048 + ... + 131764280.

It is an arithmetic number, because the mean of its divisors is an integer number (780120888750).

Almost surely, 2^{63556091492712} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63556091492712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99855473760000).

63556091492712 is an abundant number, since it is smaller than the sum of its proper divisors (136154856027288).

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

63556091492712 is a wasteful number, since it uses less digits than its factorization.

63556091492712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484505 (or 484487 counting only the distinct ones).

The product of its (nonzero) digits is 24494400, while the sum is 60.

The spelling of 63556091492712 in words is "sixty-three trillion, five hundred fifty-six billion, ninety-one million, four hundred ninety-two thousand, seven hundred twelve".