5161166945 has 16 divisors (see below), whose sum is σ = 6757948800. Its totient is φ = 3752736000.

The previous prime is 5161166939. The next prime is 5161166947. The reversal of 5161166945 is 5496611615.

5161166945 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5161166945 - 2²⁸ = 4892731489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5161166896 and 5161166905.

It is not an unprimeable number, because it can be changed into a prime (5161166947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347420 + ... + 361970.

It is an arithmetic number, because the mean of its divisors is an integer number (422371800).

Almost surely, 2^5161166945 is an apocalyptic number.

5161166945 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5161166945 is a deficient number, since it is larger than the sum of its proper divisors (1596781855).

5161166945 is a wasteful number, since it uses less digits than its factorization.

5161166945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21016.

The product of its digits is 194400, while the sum is 44.

The square root of 5161166945 is about 71841.2621339575. The cubic root of 5161166945 is about 1728.1547751999.

The spelling of 5161166945 in words is "five billion, one hundred sixty-one million, one hundred sixty-six thousand, nine hundred forty-five".