11622316721 has 8 divisors (see below), whose sum is σ = 11824144800. Its totient is φ = 11420650080.

The previous prime is 11622316709. The next prime is 11622316723. The reversal of 11622316721 is 12761322611.

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

It is a cyclic number.

It is not a de Polignac number, because 11622316721 - 2¹⁰ = 11622315697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11622316723) 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, 109670 + ... + 187808.

It is an arithmetic number, because the mean of its divisors is an integer number (1478018100).

Almost surely, 2^11622316721 is an apocalyptic number.

It is an amenable number.

11622316721 is a deficient number, since it is larger than the sum of its proper divisors (201828079).

11622316721 is an equidigital number, since it uses as much as digits as its factorization.

11622316721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80719.

The product of its digits is 6048, while the sum is 32.

The spelling of 11622316721 in words is "eleven billion, six hundred twenty-two million, three hundred sixteen thousand, seven hundred twenty-one".