5165949657 has 16 divisors (see below), whose sum is σ = 7717194432. Its totient is φ = 3046259520.

The previous prime is 5165949643. The next prime is 5165949667. The reversal of 5165949657 is 7569495615.

It is not a de Polignac number, because 5165949657 - 2⁸ = 5165949401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5165949597 and 5165949606.

It is not an unprimeable number, because it can be changed into a prime (5165949667) 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 15 ways as a sum of consecutive naturals, for example, 2114238 + ... + 2116679.

It is an arithmetic number, because the mean of its divisors is an integer number (482324652).

Almost surely, 2^5165949657 is an apocalyptic number.

It is an amenable number.

5165949657 is a deficient number, since it is larger than the sum of its proper divisors (2551244775).

5165949657 is a wasteful number, since it uses less digits than its factorization.

5165949657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4230968.

The product of its digits is 10206000, while the sum is 57.

The square root of 5165949657 is about 71874.5410907089. The cubic root of 5165949657 is about 1728.6884216225.

The spelling of 5165949657 in words is "five billion, one hundred sixty-five million, nine hundred forty-nine thousand, six hundred fifty-seven".