40166552665143 has 32 divisors (see below), whose sum is σ = 61064126323200. Its totient is φ = 26078834347200.

The previous prime is 40166552665051. The next prime is 40166552665231. The reversal of 40166552665143 is 34156625566104.

40166552665143 is a `hidden beast` number, since 4 + 0 + 1 + 6 + 65 + 5 + 2 + 66 + 514 + 3 = 666.

It is not a de Polignac number, because 40166552665143 - 2⁹ = 40166552664631 is a prime.

It is a super-2 number, since 2×40166552665143² (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 40166552665143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40166552666143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31140363 + ... + 32404556.

It is an arithmetic number, because the mean of its divisors is an integer number (1908253947600).

Almost surely, 2^{40166552665143} is an apocalyptic number.

40166552665143 is a deficient number, since it is larger than the sum of its proper divisors (20897573658057).

40166552665143 is a wasteful number, since it uses less digits than its factorization.

40166552665143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63545540 (or 63545534 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 54.

The spelling of 40166552665143 in words is "forty trillion, one hundred sixty-six billion, five hundred fifty-two million, six hundred sixty-five thousand, one hundred forty-three".