40656660455444 has 12 divisors (see below), whose sum is σ = 77617260869568. Its totient is φ = 18480300207000.

The previous prime is 40656660455413. The next prime is 40656660455459. The reversal of 40656660455444 is 44455406665604.

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, 462007505132 + ... + 462007505219.

It is an arithmetic number, because the mean of its divisors is an integer number (6468105072464).

Almost surely, 2^{40656660455444} is an apocalyptic number.

40656660455444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40656660455444 is a deficient number, since it is larger than the sum of its proper divisors (36960600414124).

40656660455444 is a wasteful number, since it uses less digits than its factorization.

40656660455444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924015010366 (or 924015010364 counting only the distinct ones).

The product of its (nonzero) digits is 165888000, while the sum is 59.

The spelling of 40656660455444 in words is "forty trillion, six hundred fifty-six billion, six hundred sixty million, four hundred fifty-five thousand, four hundred forty-four".