6656290726 has 8 divisors (see below), whose sum is σ = 10063054080. Its totient is φ = 3301939368.

The previous prime is 6656290717. The next prime is 6656290727. The reversal of 6656290726 is 6270926566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6656290726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656290727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13102681 + ... + 13103188.

It is an arithmetic number, because the mean of its divisors is an integer number (1257881760).

Almost surely, 2^6656290726 is an apocalyptic number.

6656290726 is a deficient number, since it is larger than the sum of its proper divisors (3406763354).

6656290726 is a wasteful number, since it uses less digits than its factorization.

6656290726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26205998.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The square root of 6656290726 is about 81586.0939498883. The cubic root of 6656290726 is about 1881.0951373631.

The spelling of 6656290726 in words is "six billion, six hundred fifty-six million, two hundred ninety thousand, seven hundred twenty-six".