726120505216 has 16 divisors (see below), whose sum is σ = 1446568194240. Its totient is φ = 363060252544.

The previous prime is 726120505189. The next prime is 726120505217. The reversal of 726120505216 is 612505021627.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726120505217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2836408096 + ... + 2836408351.

It is an arithmetic number, because the mean of its divisors is an integer number (90410512140).

Almost surely, 2^726120505216 is an apocalyptic number.

It is an amenable number.

726120505216 is a deficient number, since it is larger than the sum of its proper divisors (720447689024).

726120505216 is an equidigital number, since it uses as much as digits as its factorization.

726120505216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5672816461 (or 5672816449 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 726120505216 in words is "seven hundred twenty-six billion, one hundred twenty million, five hundred five thousand, two hundred sixteen".