40199553756 has 18 divisors (see below), whose sum is σ = 101615538752. Its totient is φ = 13399851240.

The previous prime is 40199553743. The next prime is 40199553763. The reversal of 40199553756 is 65735599104.

40199553756 is a `hidden beast` number, since 4 + 0 + 19 + 9 + 553 + 75 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 558327100 + ... + 558327171.

Almost surely, 2^40199553756 is an apocalyptic number.

It is an amenable number.

40199553756 is an abundant number, since it is smaller than the sum of its proper divisors (61415984996).

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

40199553756 is a wasteful number, since it uses less digits than its factorization.

40199553756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116654281 (or 1116654276 counting only the distinct ones).

The product of its (nonzero) digits is 5103000, while the sum is 54.

The spelling of 40199553756 in words is "forty billion, one hundred ninety-nine million, five hundred fifty-three thousand, seven hundred fifty-six".