40664221432 has 8 divisors (see below), whose sum is σ = 76245415200. Its totient is φ = 20332110712.

The previous prime is 40664221397. The next prime is 40664221463. The reversal of 40664221432 is 23412246604.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2541513832 + ... + 2541513847.

It is an arithmetic number, because the mean of its divisors is an integer number (9530676900).

Almost surely, 2^40664221432 is an apocalyptic number.

It is an amenable number.

40664221432 is a deficient number, since it is larger than the sum of its proper divisors (35581193768).

40664221432 is a wasteful number, since it uses less digits than its factorization.

40664221432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5083027685 (or 5083027681 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

The spelling of 40664221432 in words is "forty billion, six hundred sixty-four million, two hundred twenty-one thousand, four hundred thirty-two".