6626040666402 has 32 divisors (see below), whose sum is σ = 13469603336640. Its totient is φ = 2172428032320.

The previous prime is 6626040666397. The next prime is 6626040666403. The reversal of 6626040666402 is 2046660406266.

It is not an unprimeable number, because it can be changed into a prime (6626040666403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21141613 + ... + 21452735.

It is an arithmetic number, because the mean of its divisors is an integer number (420925104270).

Almost surely, 2^{6626040666402} is an apocalyptic number.

6626040666402 is an abundant number, since it is smaller than the sum of its proper divisors (6843562670238).

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

6626040666402 is a wasteful number, since it uses less digits than its factorization.

6626040666402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369378.

The product of its (nonzero) digits is 2985984, while the sum is 48.

The spelling of 6626040666402 in words is "six trillion, six hundred twenty-six billion, forty million, six hundred sixty-six thousand, four hundred two".