5155659999 has 18 divisors (see below), whose sum is σ = 8662912440. Its totient is φ = 2946091176.

The previous prime is 5155659947. The next prime is 5155660009. The reversal of 5155659999 is 9999565515.

It is not a de Polignac number, because 5155659999 - 2⁷ = 5155659871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155659199) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 5844979 + ... + 5845860.

Almost surely, 2^5155659999 is an apocalyptic number.

5155659999 is a deficient number, since it is larger than the sum of its proper divisors (3507252441).

5155659999 is a wasteful number, since it uses less digits than its factorization.

5155659999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11690859 (or 11690849 counting only the distinct ones).

The product of its digits is 24603750, while the sum is 63.

The square root of 5155659999 is about 71802.9247245542. The cubic root of 5155659999 is about 1727.5399115491.

The spelling of 5155659999 in words is "five billion, one hundred fifty-five million, six hundred fifty-nine thousand, nine hundred ninety-nine".