2640016637764 has 24 divisors (see below), whose sum is σ = 5041691561088. Its totient is φ = 1199612372640.

The previous prime is 2640016637743. The next prime is 2640016637789. The reversal of 2640016637764 is 4677366100462.

2640016637764 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, 9744604 + ... + 10011859.

It is an arithmetic number, because the mean of its divisors is an integer number (210070481712).

Almost surely, 2^{2640016637764} is an apocalyptic number.

It is an amenable number.

2640016637764 is a deficient number, since it is larger than the sum of its proper divisors (2401674923324).

2640016637764 is a wasteful number, since it uses less digits than its factorization.

2640016637764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19759515 (or 19759513 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 52.

The spelling of 2640016637764 in words is "two trillion, six hundred forty billion, sixteen million, six hundred thirty-seven thousand, seven hundred sixty-four".