722144166 has 16 divisors (see below), whose sum is σ = 1446110064. Its totient is φ = 240411104.

The previous prime is 722144141. The next prime is 722144183. The reversal of 722144166 is 661441227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70725 + ... + 80288.

It is an arithmetic number, because the mean of its divisors is an integer number (90381879).

Almost surely, 2^722144166 is an apocalyptic number.

722144166 is an abundant number, since it is smaller than the sum of its proper divisors (723965898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722144166 is a wasteful number, since it uses less digits than its factorization.

722144166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151815.

The product of its digits is 16128, while the sum is 33.

The square root of 722144166 is about 26872.7402026663. The cubic root of 722144166 is about 897.1697782931.

The spelling of 722144166 in words is "seven hundred twenty-two million, one hundred forty-four thousand, one hundred sixty-six".