6642142604 has 24 divisors (see below), whose sum is σ = 11667514320. Its totient is φ = 3308585984.

The previous prime is 6642142567. The next prime is 6642142657. The reversal of 6642142604 is 4062412466.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2699927 + ... + 2702385.

It is an arithmetic number, because the mean of its divisors is an integer number (486146430).

Almost surely, 2^6642142604 is an apocalyptic number.

It is an amenable number.

6642142604 is a deficient number, since it is larger than the sum of its proper divisors (5025371716).

6642142604 is a wasteful number, since it uses less digits than its factorization.

6642142604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4729 (or 4727 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 6642142604 is about 81499.3411261711. The cubic root of 6642142604 is about 1879.7614194753.

The spelling of 6642142604 in words is "six billion, six hundred forty-two million, one hundred forty-two thousand, six hundred four".