6440242666002 has 16 divisors (see below), whose sum is σ = 13056930337440. Its totient is φ = 2117340054432.

The previous prime is 6440242665917. The next prime is 6440242666069. The reversal of 6440242666002 is 2006662420446.

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, 7351874752 + ... + 7351875627.

It is an arithmetic number, because the mean of its divisors is an integer number (816058146090).

Almost surely, 2^{6440242666002} is an apocalyptic number.

6440242666002 is an abundant number, since it is smaller than the sum of its proper divisors (6616687671438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6440242666002 is a wasteful number, since it uses less digits than its factorization.

6440242666002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14703750457.

The product of its (nonzero) digits is 663552, while the sum is 42.

The spelling of 6440242666002 in words is "six trillion, four hundred forty billion, two hundred forty-two million, six hundred sixty-six thousand, two".