6643427102 has 16 divisors (see below), whose sum is σ = 11296516560. Its totient is φ = 2904818112.

The previous prime is 6643427099. The next prime is 6643427113. The reversal of 6643427102 is 2017243466.

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, 6723623 + ... + 6724610.

It is an arithmetic number, because the mean of its divisors is an integer number (706032285).

Almost surely, 2^6643427102 is an apocalyptic number.

6643427102 is a deficient number, since it is larger than the sum of its proper divisors (4653089458).

6643427102 is a wasteful number, since it uses less digits than its factorization.

6643427102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13448267.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 6643427102 is about 81507.2211647532. The cubic root of 6643427102 is about 1879.8825849033.

The spelling of 6643427102 in words is "six billion, six hundred forty-three million, four hundred twenty-seven thousand, one hundred two".