63665100631040 has 176 divisors, whose sum is σ = 154826223859200. Its totient is φ = 25115818770432.

The previous prime is 63665100630991. The next prime is 63665100631061. The reversal of 63665100631040 is 4013600156636.

63665100631040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63665100631040² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366776591 + ... + 366950129.

Almost surely, 2^{63665100631040} 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 63665100631040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77413111929600).

63665100631040 is an abundant number, since it is smaller than the sum of its proper divisors (91161123228160).

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

63665100631040 is a wasteful number, since it uses less digits than its factorization.

63665100631040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174550 (or 174532 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 41.

Adding to 63665100631040 its reverse (4013600156636), we get a palindrome (67678700787676).

The spelling of 63665100631040 in words is "sixty-three trillion, six hundred sixty-five billion, one hundred million, six hundred thirty-one thousand, forty".