63665100631042 has 16 divisors (see below), whose sum is σ = 98580037554432. Its totient is φ = 30805125971760.

The previous prime is 63665100630991. The next prime is 63665100631061. The reversal of 63665100631042 is 24013600156636.

It is a super-2 number, since 2×63665100631042² (a number of 28 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 63665100631042.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6064513 + ... + 12810484.

It is an arithmetic number, because the mean of its divisors is an integer number (6161252347152).

Almost surely, 2^{63665100631042} is an apocalyptic number.

63665100631042 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

63665100631042 is a deficient number, since it is larger than the sum of its proper divisors (34914936923390).

63665100631042 is a wasteful number, since it uses less digits than its factorization.

63665100631042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18929433.

The product of its (nonzero) digits is 466560, while the sum is 43.

Adding to 63665100631042 its reverse (24013600156636), we get a palindrome (87678700787678).

The spelling of 63665100631042 in words is "sixty-three trillion, six hundred sixty-five billion, one hundred million, six hundred thirty-one thousand, forty-two".