63363006640 has 80 divisors (see below), whose sum is σ = 148147455456. Its totient is φ = 25202995200.

The previous prime is 63363006607. The next prime is 63363006643. The reversal of 63363006640 is 4660036336.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×63363006640² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63363006640.

It is not an unprimeable number, because it can be changed into a prime (63363006643) 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, 15826879 + ... + 15830881.

Almost surely, 2^63363006640 is an apocalyptic number.

It is an amenable number.

63363006640 is an abundant number, since it is smaller than the sum of its proper divisors (84784448816).

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

63363006640 is a wasteful number, since it uses less digits than its factorization.

63363006640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5078 (or 5072 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 37.

The spelling of 63363006640 in words is "sixty-three billion, three hundred sixty-three million, six thousand, six hundred forty".