40663013895 has 24 divisors (see below), whose sum is σ = 80551494816. Its totient is φ = 18588806208.

The previous prime is 40663013861. The next prime is 40663013903. The reversal of 40663013895 is 59831036604.

40663013895 is a `hidden beast` number, since 4 + 0 + 6 + 630 + 1 + 3 + 8 + 9 + 5 = 666.

It is not a de Polignac number, because 40663013895 - 2¹¹ = 40663011847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 40663013895.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64544152 + ... + 64544781.

It is an arithmetic number, because the mean of its divisors is an integer number (3356312284).

Almost surely, 2^40663013895 is an apocalyptic number.

40663013895 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40663013895 is a deficient number, since it is larger than the sum of its proper divisors (39888480921).

40663013895 is a wasteful number, since it uses less digits than its factorization.

40663013895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129088951 (or 129088948 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 40663013895 in words is "forty billion, six hundred sixty-three million, thirteen thousand, eight hundred ninety-five".