5145981166 has 16 divisors (see below), whose sum is σ = 8128607760. Its totient is φ = 2436557760.

The previous prime is 5145981151. The next prime is 5145981193. The reversal of 5145981166 is 6611895415.

It is a super-2 number, since 2×5145981166² = 52962244321653439112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68940 + ... + 122656.

It is an arithmetic number, because the mean of its divisors is an integer number (508037985).

Almost surely, 2^5145981166 is an apocalyptic number.

5145981166 is a deficient number, since it is larger than the sum of its proper divisors (2982626594).

5145981166 is a wasteful number, since it uses less digits than its factorization.

5145981166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56259.

The product of its digits is 259200, while the sum is 46.

The square root of 5145981166 is about 71735.4944640378. The cubic root of 5145981166 is about 1726.4581848945.

The spelling of 5145981166 in words is "five billion, one hundred forty-five million, nine hundred eighty-one thousand, one hundred sixty-six".