6656574357 has 16 divisors (see below), whose sum is σ = 9865951360. Its totient is φ = 4435754400.

The previous prime is 6656574347. The next prime is 6656574359. The reversal of 6656574357 is 7534756566.

6656574357 is a `hidden beast` number, since 6 + 6 + 565 + 74 + 3 + 5 + 7 = 666.

It is not a de Polignac number, because 6656574357 - 2⁸ = 6656574101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656574359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9057 + ... + 115737.

It is an arithmetic number, because the mean of its divisors is an integer number (616621960).

Almost surely, 2^6656574357 is an apocalyptic number.

It is an amenable number.

6656574357 is a deficient number, since it is larger than the sum of its proper divisors (3209377003).

6656574357 is a wasteful number, since it uses less digits than its factorization.

6656574357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109001 (or 108995 counting only the distinct ones).

The product of its digits is 15876000, while the sum is 54.

The square root of 6656574357 is about 81587.8321626454. The cubic root of 6656574357 is about 1881.1218554127.

The spelling of 6656574357 in words is "six billion, six hundred fifty-six million, five hundred seventy-four thousand, three hundred fifty-seven".