6570649136 has 20 divisors (see below), whose sum is σ = 12970834992. Its totient is φ = 3223336896.

The previous prime is 6570649121. The next prime is 6570649159. The reversal of 6570649136 is 6319460756.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3873356 + ... + 3875051.

Almost surely, 2^6570649136 is an apocalyptic number.

It is an amenable number.

6570649136 is a deficient number, since it is larger than the sum of its proper divisors (6400185856).

6570649136 is a wasteful number, since it uses less digits than its factorization.

6570649136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7748468 (or 7748462 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 47.

The square root of 6570649136 is about 81059.5406846103. The cubic root of 6570649136 is about 1872.9927329452.

The spelling of 6570649136 in words is "six billion, five hundred seventy million, six hundred forty-nine thousand, one hundred thirty-six".