723016630661 has 8 divisors (see below), whose sum is σ = 779430271704. Its totient is φ = 666716843520.

The previous prime is 723016630643. The next prime is 723016630667. The reversal of 723016630661 is 166036610327.

It can be written as a sum of positive squares in 4 ways, for example, as 300621924100 + 422394706561 = 548290^2 + 649919^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 723016630661 - 2¹⁴ = 723016614277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723016630667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28450280 + ... + 28475681.

It is an arithmetic number, because the mean of its divisors is an integer number (97428783963).

Almost surely, 2^723016630661 is an apocalyptic number.

It is an amenable number.

723016630661 is a deficient number, since it is larger than the sum of its proper divisors (56413641043).

723016630661 is a wasteful number, since it uses less digits than its factorization.

723016630661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56926951.

The product of its (nonzero) digits is 163296, while the sum is 41.

The spelling of 723016630661 in words is "seven hundred twenty-three billion, sixteen million, six hundred thirty thousand, six hundred sixty-one".