40025046664 has 32 divisors (see below), whose sum is σ = 75623889600. Its totient is φ = 19858818240.

The previous prime is 40025046641. The next prime is 40025046701. The reversal of 40025046664 is 46664052004.

40025046664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2613349 + ... + 2628619.

It is an arithmetic number, because the mean of its divisors is an integer number (2363246550).

Almost surely, 2^40025046664 is an apocalyptic number.

It is an amenable number.

40025046664 is a deficient number, since it is larger than the sum of its proper divisors (35598842936).

40025046664 is a wasteful number, since it uses less digits than its factorization.

40025046664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17773 (or 17769 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 40025046664 its reverse (46664052004), we get a palindrome (86689098668).

The spelling of 40025046664 in words is "forty billion, twenty-five million, forty-six thousand, six hundred sixty-four".