2660171198 has 4 divisors (see below), whose sum is σ = 3990256800. Its totient is φ = 1330085598.

The previous prime is 2660171197. The next prime is 2660171207. The reversal of 2660171198 is 8911710662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8911710662 = 2 ⋅4455855331.

It is a Curzon number.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660171197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665042798 + ... + 665042801.

It is an arithmetic number, because the mean of its divisors is an integer number (997564200).

Almost surely, 2^2660171198 is an apocalyptic number.

2660171198 is a deficient number, since it is larger than the sum of its proper divisors (1330085602).

2660171198 is a wasteful number, since it uses less digits than its factorization.

2660171198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330085601.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 2660171198 is about 51576.8474996291. The cubic root of 2660171198 is about 1385.5957066765.

The spelling of 2660171198 in words is "two billion, six hundred sixty million, one hundred seventy-one thousand, one hundred ninety-eight".