799457666 has 32 divisors (see below), whose sum is σ = 1393392000. Its totient is φ = 336949632.

The previous prime is 799457663. The next prime is 799457683. The reversal of 799457666 is 666754997.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (799457663) 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, 210230 + ... + 213998.

It is an arithmetic number, because the mean of its divisors is an integer number (43543500).

Almost surely, 2^799457666 is an apocalyptic number.

799457666 is a deficient number, since it is larger than the sum of its proper divisors (593934334).

799457666 is a wasteful number, since it uses less digits than its factorization.

799457666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4026.

The product of its digits is 17146080, while the sum is 59.

The square root of 799457666 is about 28274.6824208513. The cubic root of 799457666 is about 928.1079450149.

The spelling of 799457666 in words is "seven hundred ninety-nine million, four hundred fifty-seven thousand, six hundred sixty-six".