5148185665 has 16 divisors (see below), whose sum is σ = 7115968512. Its totient is φ = 3502384704.

The previous prime is 5148185629. The next prime is 5148185671. The reversal of 5148185665 is 5665818415.

It is a happy number.

It is not a de Polignac number, because 5148185665 - 2¹⁵ = 5148152897 is a prime.

It is a super-2 number, since 2×5148185665² = 53007631282622984450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 574654 + ... + 583543.

It is an arithmetic number, because the mean of its divisors is an integer number (444748032).

Almost surely, 2^5148185665 is an apocalyptic number.

It is an amenable number.

5148185665 is a deficient number, since it is larger than the sum of its proper divisors (1967782847).

5148185665 is a wasteful number, since it uses less digits than its factorization.

5148185665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158336.

The product of its digits is 1152000, while the sum is 49.

The square root of 5148185665 is about 71750.8582875494. The cubic root of 5148185665 is about 1726.7046835288.

The spelling of 5148185665 in words is "five billion, one hundred forty-eight million, one hundred eighty-five thousand, six hundred sixty-five".