6640134247206 has 12 divisors (see below), whose sum is σ = 14386957535652. Its totient is φ = 2213378082396.

The previous prime is 6640134247193. The next prime is 6640134247217. The reversal of 6640134247206 is 6027424310466.

6640134247206 is a `hidden beast` number, since 6 + 6 + 4 + 0 + 13 + 424 + 7 + 206 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 184448173516 + ... + 184448173551.

It is an arithmetic number, because the mean of its divisors is an integer number (1198913127971).

Almost surely, 2^{6640134247206} is an apocalyptic number.

6640134247206 is an abundant number, since it is smaller than the sum of its proper divisors (7746823288446).

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

6640134247206 is a wasteful number, since it uses less digits than its factorization.

6640134247206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368896347075 (or 368896347072 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 45.

The spelling of 6640134247206 in words is "six trillion, six hundred forty billion, one hundred thirty-four million, two hundred forty-seven thousand, two hundred six".