40405074566 has 4 divisors (see below), whose sum is σ = 60607611852. Its totient is φ = 20202537282.

The previous prime is 40405074527. The next prime is 40405074599. The reversal of 40405074566 is 66547050404.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101268640 + ... + 10101268643.

It is an arithmetic number, because the mean of its divisors is an integer number (15151902963).

Almost surely, 2^40405074566 is an apocalyptic number.

40405074566 is a deficient number, since it is larger than the sum of its proper divisors (20202537286).

40405074566 is a wasteful number, since it uses less digits than its factorization.

40405074566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20202537285.

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 40405074566 in words is "forty billion, four hundred five million, seventy-four thousand, five hundred sixty-six".