6690499486 has 16 divisors (see below), whose sum is σ = 11424094848. Its totient is φ = 2908912600.

The previous prime is 6690499483. The next prime is 6690499511. The reversal of 6690499486 is 6849940966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6690499483) 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, 6610660 + ... + 6611671.

It is an arithmetic number, because the mean of its divisors is an integer number (714005928).

Almost surely, 2^6690499486 is an apocalyptic number.

6690499486 is a deficient number, since it is larger than the sum of its proper divisors (4733595362).

6690499486 is a wasteful number, since it uses less digits than its factorization.

6690499486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13222367.

The product of its (nonzero) digits is 20155392, while the sum is 61.

The square root of 6690499486 is about 81795.4735055675. The cubic root of 6690499486 is about 1884.3121446658.

The spelling of 6690499486 in words is "six billion, six hundred ninety million, four hundred ninety-nine thousand, four hundred eighty-six".