6630291549 has 48 divisors (see below), whose sum is σ = 11046921600. Its totient is φ = 3753682560.

The previous prime is 6630291541. The next prime is 6630291559. The reversal of 6630291549 is 9451920366.

6630291549 is a `hidden beast` number, since 6 + 630 + 2 + 9 + 1 + 5 + 4 + 9 = 666.

It is not a de Polignac number, because 6630291549 - 2³ = 6630291541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6630291541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5359359 + ... + 5360595.

It is an arithmetic number, because the mean of its divisors is an integer number (230144200).

Almost surely, 2^6630291549 is an apocalyptic number.

It is an amenable number.

6630291549 is a deficient number, since it is larger than the sum of its proper divisors (4416630051).

6630291549 is a wasteful number, since it uses less digits than its factorization.

6630291549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970 (or 1967 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 6630291549 is about 81426.6022194221. The cubic root of 6630291549 is about 1878.6427835384.

The spelling of 6630291549 in words is "six billion, six hundred thirty million, two hundred ninety-one thousand, five hundred forty-nine".