40566532664 has 32 divisors (see below), whose sum is σ = 86937671520. Its totient is φ = 17383779456.

The previous prime is 40566532651. The next prime is 40566532667. The reversal of 40566532664 is 46623566504.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40566532667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567302 + ... + 634794.

It is an arithmetic number, because the mean of its divisors is an integer number (2716802235).

Almost surely, 2^40566532664 is an apocalyptic number.

It is an amenable number.

40566532664 is an abundant number, since it is smaller than the sum of its proper divisors (46371138856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40566532664 is a wasteful number, since it uses less digits than its factorization.

40566532664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78239 (or 78235 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 40566532664 in words is "forty billion, five hundred sixty-six million, five hundred thirty-two thousand, six hundred sixty-four".