6630694687 has 8 divisors (see below), whose sum is σ = 6848962560. Its totient is φ = 6412700280.

The previous prime is 6630694667. The next prime is 6630694709. The reversal of 6630694687 is 7864960366.

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 6630694687 - 2¹⁹ = 6630170399 is a prime.

It is a super-2 number, since 2×6630694687² = 87932224064420055938, 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 (6630694607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18487 + ... + 116632.

It is an arithmetic number, because the mean of its divisors is an integer number (856120320).

Almost surely, 2^6630694687 is an apocalyptic number.

6630694687 is a deficient number, since it is larger than the sum of its proper divisors (218267873).

6630694687 is a wasteful number, since it uses less digits than its factorization.

6630694687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136733.

The product of its (nonzero) digits is 7838208, while the sum is 55.

The square root of 6630694687 is about 81429.0776504315. The cubic root of 6630694687 is about 1878.6808581308.

The spelling of 6630694687 in words is "six billion, six hundred thirty million, six hundred ninety-four thousand, six hundred eighty-seven".