6691887330 has 16 divisors (see below), whose sum is σ = 16060529664. Its totient is φ = 1784503280.

The previous prime is 6691887311. The next prime is 6691887347. The reversal of 6691887330 is 337881966.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111531426 + ... + 111531485.

It is an arithmetic number, because the mean of its divisors is an integer number (1003783104).

Almost surely, 2^6691887330 is an apocalyptic number.

6691887330 is an abundant number, since it is smaller than the sum of its proper divisors (9368642334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6691887330 is a wasteful number, since it uses less digits than its factorization.

6691887330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223062921.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 6691887330 is about 81803.9566891480. The cubic root of 6691887330 is about 1884.4424264436.

The spelling of 6691887330 in words is "six billion, six hundred ninety-one million, eight hundred eighty-seven thousand, three hundred thirty".