722423636162 has 18 divisors (see below), whose sum is σ = 1098816587307. Its totient is φ = 356220438336.

The previous prime is 722423636159. The next prime is 722423636191. The reversal of 722423636162 is 261636324227.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 180726164161 + 541697472001 = 425119^2 + 736001^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=601009.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 87743198 + ... + 87751430.

Almost surely, 2^722423636162 is an apocalyptic number.

722423636162 is a deficient number, since it is larger than the sum of its proper divisors (376392951145).

722423636162 is an frugal number, since it uses more digits than its factorization.

722423636162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16614 (or 8308 counting only the distinct ones).

The product of its digits is 870912, while the sum is 44.

The spelling of 722423636162 in words is "seven hundred twenty-two billion, four hundred twenty-three million, six hundred thirty-six thousand, one hundred sixty-two".