726166163625604 has 24 divisors (see below), whose sum is σ = 1370875344467328. Its totient is φ = 334582653806880.

The previous prime is 726166163625587. The next prime is 726166163625613. The reversal of 726166163625604 is 406526361661627.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11894972812 + ... + 11895033859.

It is an arithmetic number, because the mean of its divisors is an integer number (57119806019472).

Almost surely, 2^{726166163625604} is an apocalyptic number.

It is an amenable number.

726166163625604 is a deficient number, since it is larger than the sum of its proper divisors (644709180841724).

726166163625604 is a wasteful number, since it uses less digits than its factorization.

726166163625604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23790007275 (or 23790007273 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 61.

The spelling of 726166163625604 in words is "seven hundred twenty-six trillion, one hundred sixty-six billion, one hundred sixty-three million, six hundred twenty-five thousand, six hundred four".