722166741 has 6 divisors (see below), whose sum is σ = 1043129750. Its totient is φ = 481444488.

The previous prime is 722166727. The next prime is 722166761. The reversal of 722166741 is 147661227.

It can be written as a sum of positive squares in only one way, i.e., 431600625 + 290566116 = 20775^2 + 17046^2 .

It is not a de Polignac number, because 722166741 - 2¹⁷ = 722035669 is a prime.

It is a super-2 number, since 2×722166741² = 1043049603613122162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 722166696 and 722166705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722166761) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40120366 + ... + 40120383.

Almost surely, 2^722166741 is an apocalyptic number.

It is an amenable number.

722166741 is a deficient number, since it is larger than the sum of its proper divisors (320963009).

722166741 is a wasteful number, since it uses less digits than its factorization.

722166741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80240755 (or 80240752 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 722166741 is about 26873.1602347026. The cubic root of 722166741 is about 897.1791270251.

The spelling of 722166741 in words is "seven hundred twenty-two million, one hundred sixty-six thousand, seven hundred forty-one".