6630651 has 12 divisors (see below), whose sum is σ = 9609600. Its totient is φ = 4405680.

The previous prime is 6630641. The next prime is 6630653. The reversal of 6630651 is 1560366.

6630651 is a `hidden beast` number, since 6 + 6 + 3 + 0 + 651 = 666.

It is not a de Polignac number, because 6630651 - 2⁶ = 6630587 is a prime.

It is a super-3 number, since 3×6630651³ (a number of 21 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6630653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2086 + ... + 4196.

It is an arithmetic number, because the mean of its divisors is an integer number (800800).

Almost surely, 2^6630651 is an apocalyptic number.

6630651 is a deficient number, since it is larger than the sum of its proper divisors (2978949).

6630651 is a wasteful number, since it uses less digits than its factorization.

6630651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466 (or 2463 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 6630651 is about 2575.0050485387. The cubic root of 6630651 is about 187.8676732162.

The spelling of 6630651 in words is "six million, six hundred thirty thousand, six hundred fifty-one".