2440646597656 has 8 divisors (see below), whose sum is σ = 4576212370620. Its totient is φ = 1220323298824.

The previous prime is 2440646597629. The next prime is 2440646597659. The reversal of 2440646597656 is 6567956460442.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440646597659) by changing a digit.

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 as a sum of consecutive naturals, namely, 152540412346 + ... + 152540412361.

Almost surely, 2^{2440646597656} is an apocalyptic number.

It is an amenable number.

2440646597656 is a deficient number, since it is larger than the sum of its proper divisors (2135565772964).

2440646597656 is a wasteful number, since it uses less digits than its factorization.

2440646597656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305080824713 (or 305080824709 counting only the distinct ones).

The product of its (nonzero) digits is 261273600, while the sum is 64.

The spelling of 2440646597656 in words is "two trillion, four hundred forty billion, six hundred forty-six million, five hundred ninety-seven thousand, six hundred fifty-six".