40640663614 has 8 divisors (see below), whose sum is σ = 60972994368. Its totient is φ = 20316332160.

The previous prime is 40640663611. The next prime is 40640663629. The reversal of 40640663614 is 41636604604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40640663611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1987107 + ... + 2007454.

It is an arithmetic number, because the mean of its divisors is an integer number (7621624296).

Almost surely, 2^40640663614 is an apocalyptic number.

40640663614 is a deficient number, since it is larger than the sum of its proper divisors (20332330754).

40640663614 is a wasteful number, since it uses less digits than its factorization.

40640663614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999650.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 40640663614 in words is "forty billion, six hundred forty million, six hundred sixty-three thousand, six hundred fourteen".