40024536661 has 8 divisors (see below), whose sum is σ = 40890852864. Its totient is φ = 39162336720.

The previous prime is 40024536649. The next prime is 40024536677. The reversal of 40024536661 is 16663542004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40024536661 - 2⁷ = 40024536533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40024536661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40024536161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009405 + ... + 1048306.

It is an arithmetic number, because the mean of its divisors is an integer number (5111356608).

Almost surely, 2^40024536661 is an apocalyptic number.

It is an amenable number.

40024536661 is a deficient number, since it is larger than the sum of its proper divisors (866316203).

40024536661 is a wasteful number, since it uses less digits than its factorization.

40024536661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058131.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 40024536661 in words is "forty billion, twenty-four million, five hundred thirty-six thousand, six hundred sixty-one".