63663641406250 has 144 divisors (see below), whose sum is σ = 128024231326560. Its totient is φ = 23669685000000.

The previous prime is 63663641406199. The next prime is 63663641406259. The reversal of 63663641406250 is 5260414636636.

It is not an unprimeable number, because it can be changed into a prime (63663641406259) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 786678289 + ... + 786759211.

It is an arithmetic number, because the mean of its divisors is an integer number (889057161990).

Almost surely, 2^{63663641406250} is an apocalyptic number.

63663641406250 is an abundant number, since it is smaller than the sum of its proper divisors (64360589920310).

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

63663641406250 is an frugal number, since it uses more digits than its factorization.

63663641406250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81037 (or 81002 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 52.

The spelling of 63663641406250 in words is "sixty-three trillion, six hundred sixty-three billion, six hundred forty-one million, four hundred six thousand, two hundred fifty".