5161627666 has 32 divisors (see below), whose sum is σ = 8797219200. Its totient is φ = 2251670400.

The previous prime is 5161627643. The next prime is 5161627721. The reversal of 5161627666 is 6667261615.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 204966 + ... + 228766.

It is an arithmetic number, because the mean of its divisors is an integer number (274913100).

Almost surely, 2^5161627666 is an apocalyptic number.

5161627666 is a deficient number, since it is larger than the sum of its proper divisors (3635591534).

5161627666 is a wasteful number, since it uses less digits than its factorization.

5161627666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24274.

The product of its digits is 544320, while the sum is 46.

The square root of 5161627666 is about 71844.4685831832. The cubic root of 5161627666 is about 1728.2061959680.

The spelling of 5161627666 in words is "five billion, one hundred sixty-one million, six hundred twenty-seven thousand, six hundred sixty-six".