6642563651302 has 16 divisors (see below), whose sum is σ = 10423245236832. Its totient is φ = 3168876047040.

The previous prime is 6642563651293. The next prime is 6642563651323. The reversal of 6642563651302 is 2031563652466.

It is a congruent number.

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, 181850199 + ... + 181886722.

It is an arithmetic number, because the mean of its divisors is an integer number (651452827302).

Almost surely, 2^{6642563651302} is an apocalyptic number.

6642563651302 is a deficient number, since it is larger than the sum of its proper divisors (3780681585530).

6642563651302 is a wasteful number, since it uses less digits than its factorization.

6642563651302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363737343.

The product of its (nonzero) digits is 4665600, while the sum is 49.

The spelling of 6642563651302 in words is "six trillion, six hundred forty-two billion, five hundred sixty-three million, six hundred fifty-one thousand, three hundred two".