726520166 has 8 divisors (see below), whose sum is σ = 1099424664. Its totient is φ = 360045280.

The previous prime is 726520097. The next prime is 726520181. The reversal of 726520166 is 661025627.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1607120 + ... + 1607571.

It is an arithmetic number, because the mean of its divisors is an integer number (137428083).

Almost surely, 2^726520166 is an apocalyptic number.

726520166 is a deficient number, since it is larger than the sum of its proper divisors (372904498).

726520166 is a wasteful number, since it uses less digits than its factorization.

726520166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214806.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 726520166 is about 26954.0380277242. The cubic root of 726520166 is about 898.9783328379.

The spelling of 726520166 in words is "seven hundred twenty-six million, five hundred twenty thousand, one hundred sixty-six".