6652746721 has 8 divisors (see below), whose sum is σ = 6828740640. Its totient is φ = 6478860768.

The previous prime is 6652746703. The next prime is 6652746739. The reversal of 6652746721 is 1276472566.

It is an interprime number because it is at equal distance from previous prime (6652746703) and next prime (6652746739).

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 6652746721 - 2⁵ = 6652746689 is a prime.

It is a super-3 number, since 3×6652746721³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6652746701) 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, 520596 + ... + 533221.

It is an arithmetic number, because the mean of its divisors is an integer number (853592580).

Almost surely, 2^6652746721 is an apocalyptic number.

It is an amenable number.

6652746721 is a deficient number, since it is larger than the sum of its proper divisors (175993919).

6652746721 is a wasteful number, since it uses less digits than its factorization.

6652746721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053983.

The product of its digits is 846720, while the sum is 46.

The square root of 6652746721 is about 81564.3716398281. The cubic root of 6652746721 is about 1880.7612279651.

The spelling of 6652746721 in words is "six billion, six hundred fifty-two million, seven hundred forty-six thousand, seven hundred twenty-one".