40664587166 has 48 divisors (see below), whose sum is σ = 71295344640. Its totient is φ = 17344459440.

The previous prime is 40664587153. The next prime is 40664587181. The reversal of 40664587166 is 66178546604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21733211 + ... + 21735081.

It is an arithmetic number, because the mean of its divisors is an integer number (1485319680).

Almost surely, 2^40664587166 is an apocalyptic number.

40664587166 is a deficient number, since it is larger than the sum of its proper divisors (30630757474).

40664587166 is a wasteful number, since it uses less digits than its factorization.

40664587166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829 (or 2822 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 40664587166 in words is "forty billion, six hundred sixty-four million, five hundred eighty-seven thousand, one hundred sixty-six".