6638152199 has 16 divisors (see below), whose sum is σ = 7921385472. Its totient is φ = 5438968128.

The previous prime is 6638152177. The next prime is 6638152253. The reversal of 6638152199 is 9912518366.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6638152199 - 2²⁴ = 6621374983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6638152399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255347 + ... + 280139.

It is an arithmetic number, because the mean of its divisors is an integer number (495086592).

Almost surely, 2^6638152199 is an apocalyptic number.

6638152199 is a deficient number, since it is larger than the sum of its proper divisors (1283233273).

6638152199 is a wasteful number, since it uses less digits than its factorization.

6638152199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26486.

The product of its digits is 699840, while the sum is 50.

The square root of 6638152199 is about 81474.8562379830. The cubic root of 6638152199 is about 1879.3849088399.

The spelling of 6638152199 in words is "six billion, six hundred thirty-eight million, one hundred fifty-two thousand, one hundred ninety-nine".