40166254801718 has 16 divisors (see below), whose sum is σ = 61531747257024. Its totient is φ = 19655678817600.

The previous prime is 40166254801709. The next prime is 40166254801733. The reversal of 40166254801718 is 81710845266104.

It is a happy number.

It is a super-2 number, since 2×40166254801718² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40166254801718.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11507618 + ... + 14586218.

It is an arithmetic number, because the mean of its divisors is an integer number (3845734203564).

Almost surely, 2^{40166254801718} is an apocalyptic number.

40166254801718 is a deficient number, since it is larger than the sum of its proper divisors (21365492455306).

40166254801718 is a wasteful number, since it uses less digits than its factorization.

40166254801718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3217447.

The product of its (nonzero) digits is 2580480, while the sum is 53.

The spelling of 40166254801718 in words is "forty trillion, one hundred sixty-six billion, two hundred fifty-four million, eight hundred one thousand, seven hundred eighteen".