40115664065632 has 24 divisors (see below), whose sum is σ = 79023286568016. Its totient is φ = 20046257953152.

The previous prime is 40115664065621. The next prime is 40115664065677. The reversal of 40115664065632 is 23656046651104.

It is a super-3 number, since 3×40115664065632³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 361633668 + ... + 361744579.

It is an arithmetic number, because the mean of its divisors is an integer number (3292636940334).

Almost surely, 2^{40115664065632} is an apocalyptic number.

It is an amenable number.

40115664065632 is a deficient number, since it is larger than the sum of its proper divisors (38907622502384).

40115664065632 is a wasteful number, since it uses less digits than its factorization.

40115664065632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723379990 (or 723379982 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 40115664065632 in words is "forty trillion, one hundred fifteen billion, six hundred sixty-four million, sixty-five thousand, six hundred thirty-two".