40054164666 has 32 divisors (see below), whose sum is σ = 81091238400. Its totient is φ = 13187877120.

The previous prime is 40054164659. The next prime is 40054164679. The reversal of 40054164666 is 66646145004.

It is a super-2 number, since 2×40054164666² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491350 + ... + 567038.

It is an arithmetic number, because the mean of its divisors is an integer number (2534101200).

Almost surely, 2^40054164666 is an apocalyptic number.

40054164666 is an abundant number, since it is smaller than the sum of its proper divisors (41037073734).

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

40054164666 is a wasteful number, since it uses less digits than its factorization.

40054164666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76774.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 40054164666 in words is "forty billion, fifty-four million, one hundred sixty-four thousand, six hundred sixty-six".