40020231757664 has 24 divisors (see below), whose sum is σ = 78791530173048. Its totient is φ = 20009684412160.

The previous prime is 40020231757613. The next prime is 40020231757673. The reversal of 40020231757664 is 46675713202004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11973482 + ... + 14946729.

It is an arithmetic number, because the mean of its divisors is an integer number (3282980423877).

Almost surely, 2^{40020231757664} is an apocalyptic number.

It is an amenable number.

40020231757664 is a deficient number, since it is larger than the sum of its proper divisors (38771298415384).

40020231757664 is a wasteful number, since it uses less digits than its factorization.

40020231757664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26966678 (or 26966670 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 47.

Adding to 40020231757664 its reverse (46675713202004), we get a palindrome (86695944959668).

The spelling of 40020231757664 in words is "forty trillion, twenty billion, two hundred thirty-one million, seven hundred fifty-seven thousand, six hundred sixty-four".