40635303664 has 10 divisors (see below), whose sum is σ = 78730900880. Its totient is φ = 20317651824.

The previous prime is 40635303661. The next prime is 40635303697. The reversal of 40635303664 is 46630353604.

It is a happy number.

It is a super-3 number, since 3×40635303664³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40635303661) 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 as a sum of consecutive naturals, namely, 1269853224 + ... + 1269853255.

It is an arithmetic number, because the mean of its divisors is an integer number (7873090088).

Almost surely, 2^40635303664 is an apocalyptic number.

It is an amenable number.

40635303664 is a deficient number, since it is larger than the sum of its proper divisors (38095597216).

40635303664 is a wasteful number, since it uses less digits than its factorization.

40635303664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539706487 (or 2539706481 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 40.

The spelling of 40635303664 in words is "forty billion, six hundred thirty-five million, three hundred three thousand, six hundred sixty-four".