40536268868556 has 48 divisors (see below), whose sum is σ = 105182568247680. Its totient is φ = 13500706185360.

The previous prime is 40536268868549. The next prime is 40536268868597. The reversal of 40536268868556 is 65586886263504.

It is a happy number.

40536268868556 is a `hidden beast` number, since 4 + 0 + 5 + 3 + 6 + 2 + 6 + 8 + 8 + 68 + 556 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157974510 + ... + 158230901.

It is an arithmetic number, because the mean of its divisors is an integer number (2191303505160).

Almost surely, 2^{40536268868556} is an apocalyptic number.

It is an amenable number.

40536268868556 is an abundant number, since it is smaller than the sum of its proper divisors (64646299379124).

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

40536268868556 is a wasteful number, since it uses less digits than its factorization.

40536268868556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316206611 (or 316206603 counting only the distinct ones).

The product of its (nonzero) digits is 1990656000, while the sum is 72.

The spelling of 40536268868556 in words is "forty trillion, five hundred thirty-six billion, two hundred sixty-eight million, eight hundred sixty-eight thousand, five hundred fifty-six".