5166165399 has 16 divisors (see below), whose sum is σ = 6938649600. Its totient is φ = 3418924320.

The previous prime is 5166165373. The next prime is 5166165409. The reversal of 5166165399 is 9935616615.

It is a happy number.

It is not a de Polignac number, because 5166165399 - 2⁸ = 5166165143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5166165359) 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, 1191774 + ... + 1196100.

It is an arithmetic number, because the mean of its divisors is an integer number (433665600).

Almost surely, 2^5166165399 is an apocalyptic number.

5166165399 is a deficient number, since it is larger than the sum of its proper divisors (1772484201).

5166165399 is a wasteful number, since it uses less digits than its factorization.

5166165399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7150.

The product of its digits is 1312200, while the sum is 51.

The square root of 5166165399 is about 71876.0418985353. The cubic root of 5166165399 is about 1728.7124859624.

The spelling of 5166165399 in words is "five billion, one hundred sixty-six million, one hundred sixty-five thousand, three hundred ninety-nine".