722166500 has 48 divisors (see below), whose sum is σ = 1720607616. Its totient is φ = 262604000.

The previous prime is 722166479. The next prime is 722166503. The reversal of 722166500 is 5661227.

It is not an unprimeable number, because it can be changed into a prime (722166503) 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, 60152 + ... + 71151.

It is an arithmetic number, because the mean of its divisors is an integer number (35845992).

Almost surely, 2^722166500 is an apocalyptic number.

It is an amenable number.

722166500 is an abundant number, since it is smaller than the sum of its proper divisors (998441116).

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

722166500 is a wasteful number, since it uses less digits than its factorization.

722166500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131333 (or 131321 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 722166500 is about 26873.1557506743. The cubic root of 722166500 is about 897.1790272235.

The spelling of 722166500 in words is "seven hundred twenty-two million, one hundred sixty-six thousand, five hundred".