63566498040 has 128 divisors (see below), whose sum is σ = 201107232000. Its totient is φ = 16029232128.

The previous prime is 63566498027. The next prime is 63566498041. The reversal of 63566498040 is 4089466536.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63566498041) 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, 1221676 + ... + 1272644.

It is an arithmetic number, because the mean of its divisors is an integer number (1571150250).

Almost surely, 2^63566498040 is an apocalyptic number.

63566498040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63566498040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100553616000).

63566498040 is an abundant number, since it is smaller than the sum of its proper divisors (137540733960).

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

63566498040 is a wasteful number, since it uses less digits than its factorization.

63566498040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51549 (or 51545 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 63566498040 in words is "sixty-three billion, five hundred sixty-six million, four hundred ninety-eight thousand, forty".