6632310721 has 3 divisors (see below), whose sum is σ = 6632392161. Its totient is φ = 6632229282.

The previous prime is 6632310719. The next prime is 6632310761. The reversal of 6632310721 is 1270132366.

The square root of 6632310721 is 81439.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 6632310721 - 2¹ = 6632310719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6632310761) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 40720 + ... + 122158.

It is an arithmetic number, because the mean of its divisors is an integer number (2210797387).

Almost surely, 2^6632310721 is an apocalyptic number.

6632310721 is the 81439-th square number.

6632310721 is the 40720-th centered octagonal number.

It is an amenable number.

6632310721 is a deficient number, since it is larger than the sum of its proper divisors (81440).

6632310721 is an frugal number, since it uses more digits than its factorization.

6632310721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162878 (or 81439 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The cubic root of 6632310721 is about 1878.8334698692.

The spelling of 6632310721 in words is "six billion, six hundred thirty-two million, three hundred ten thousand, seven hundred twenty-one".