722971660090 has 8 divisors (see below), whose sum is σ = 1301348988180. Its totient is φ = 289188664032.

The previous prime is 722971660067. The next prime is 722971660111. The reversal of 722971660090 is 90066179227.

It can be written as a sum of positive squares in 2 ways, for example, as 698623490569 + 24348169521 = 835837^2 + 156039^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36148582995 + ... + 36148583014.

Almost surely, 2^722971660090 is an apocalyptic number.

722971660090 is a deficient number, since it is larger than the sum of its proper divisors (578377328090).

722971660090 is a wasteful number, since it uses less digits than its factorization.

722971660090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72297166016.

The product of its (nonzero) digits is 571536, while the sum is 49.

The spelling of 722971660090 in words is "seven hundred twenty-two billion, nine hundred seventy-one million, six hundred sixty thousand, ninety".