6630772663 has 4 divisors (see below), whose sum is σ = 6637082728. Its totient is φ = 6624462600.

The previous prime is 6630772661. The next prime is 6630772669. The reversal of 6630772663 is 3662770366.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6630772663 - 2¹ = 6630772661 is a prime.

It is a super-2 number, since 2×6630772663² = 87934292216776223138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6630772661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3153456 + ... + 3155557.

It is an arithmetic number, because the mean of its divisors is an integer number (1659270682).

Almost surely, 2^6630772663 is an apocalyptic number.

6630772663 is a deficient number, since it is larger than the sum of its proper divisors (6310065).

6630772663 is a wasteful number, since it uses less digits than its factorization.

6630772663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6310064.

The product of its (nonzero) digits is 1143072, while the sum is 46.

The square root of 6630772663 is about 81429.5564460473. The cubic root of 6630772663 is about 1878.6882224393.

The spelling of 6630772663 in words is "six billion, six hundred thirty million, seven hundred seventy-two thousand, six hundred sixty-three".