5166172166 has 4 divisors (see below), whose sum is σ = 7749258252. Its totient is φ = 2583086082.

The previous prime is 5166172147. The next prime is 5166172171. The reversal of 5166172166 is 6612716615.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1291543040 + ... + 1291543043.

It is an arithmetic number, because the mean of its divisors is an integer number (1937314563).

Almost surely, 2^5166172166 is an apocalyptic number.

5166172166 is a deficient number, since it is larger than the sum of its proper divisors (2583086086).

5166172166 is a wasteful number, since it uses less digits than its factorization.

5166172166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583086085.

The product of its digits is 90720, while the sum is 41.

The square root of 5166172166 is about 71876.0889726201. The cubic root of 5166172166 is about 1728.7132407577.

The spelling of 5166172166 in words is "five billion, one hundred sixty-six million, one hundred seventy-two thousand, one hundred sixty-six".