6699029090 has 16 divisors (see below), whose sum is σ = 12985810488. Its totient is φ = 2473487616.

The previous prime is 6699029069. The next prime is 6699029093. The reversal of 6699029090 is 909209966.

It can be written as a sum of positive squares in 4 ways, for example, as 4422117001 + 2276912089 = 66499^2 + 47717^2 .

It is not an unprimeable number, because it can be changed into a prime (6699029093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25765367 + ... + 25765626.

Almost surely, 2^6699029090 is an apocalyptic number.

6699029090 is a deficient number, since it is larger than the sum of its proper divisors (6286781398).

6699029090 is a wasteful number, since it uses less digits than its factorization.

6699029090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51531013.

The product of its (nonzero) digits is 472392, while the sum is 50.

The square root of 6699029090 is about 81847.5967270878. The cubic root of 6699029090 is about 1885.1125637833.

The spelling of 6699029090 in words is "six billion, six hundred ninety-nine million, twenty-nine thousand, ninety".