6642202042 has 32 divisors (see below), whose sum is σ = 11782185984. Its totient is φ = 2748211200.

The previous prime is 6642202031. The next prime is 6642202067. The reversal of 6642202042 is 2402022466.

It is a self number, because there is not a number n which added to its sum of digits gives 6642202042.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164538 + ... + 200890.

It is an arithmetic number, because the mean of its divisors is an integer number (368193312).

Almost surely, 2^6642202042 is an apocalyptic number.

6642202042 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

6642202042 is a deficient number, since it is larger than the sum of its proper divisors (5139983942).

6642202042 is a wasteful number, since it uses less digits than its factorization.

6642202042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36814.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 6642202042 is about 81499.7057786100. The cubic root of 6642202042 is about 1879.7670265479.

The spelling of 6642202042 in words is "six billion, six hundred forty-two million, two hundred two thousand, forty-two".