40664432512131 has 4 divisors (see below), whose sum is σ = 54219243349512. Its totient is φ = 27109621674752.

The previous prime is 40664432512111. The next prime is 40664432512153. The reversal of 40664432512131 is 13121523446604.

40664432512131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40664432512131 - 2¹⁷ = 40664432381059 is a prime.

It is a super-2 number, since 2×40664432512131² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40664432512111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6777405418686 + ... + 6777405418691.

It is an arithmetic number, because the mean of its divisors is an integer number (13554810837378).

Almost surely, 2^{40664432512131} is an apocalyptic number.

40664432512131 is a deficient number, since it is larger than the sum of its proper divisors (13554810837381).

40664432512131 is a wasteful number, since it uses less digits than its factorization.

40664432512131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13554810837380.

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

Adding to 40664432512131 its reverse (13121523446604), we get a palindrome (53785955958735).

The spelling of 40664432512131 in words is "forty trillion, six hundred sixty-four billion, four hundred thirty-two million, five hundred twelve thousand, one hundred thirty-one".