40664695453 has 8 divisors (see below), whose sum is σ = 43058518272. Its totient is φ = 38271070656.

The previous prime is 40664695441. The next prime is 40664695471. The reversal of 40664695453 is 35459646604.

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 40664695453 - 2²⁵ = 40631141021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40664695453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40664695403) 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, 683526 + ... + 740632.

It is an arithmetic number, because the mean of its divisors is an integer number (5382314784).

Almost surely, 2^40664695453 is an apocalyptic number.

It is an amenable number.

40664695453 is a deficient number, since it is larger than the sum of its proper divisors (2393822819).

40664695453 is a wasteful number, since it uses less digits than its factorization.

40664695453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99011.

The product of its (nonzero) digits is 9331200, while the sum is 52.

The spelling of 40664695453 in words is "forty billion, six hundred sixty-four million, six hundred ninety-five thousand, four hundred fifty-three".