2066317730 has 16 divisors (see below), whose sum is σ = 3722526720. Its totient is φ = 825826032.

The previous prime is 2066317727. The next prime is 2066317733. The reversal of 2066317730 is 377136602.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2066317727) and next prime (2066317733).

It is a super-2 number, since 2×2066317730² = 8539337922624705800, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2066317733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75170 + ... + 98909.

It is an arithmetic number, because the mean of its divisors is an integer number (232657920).

Almost surely, 2^2066317730 is an apocalyptic number.

2066317730 is a deficient number, since it is larger than the sum of its proper divisors (1656208990).

2066317730 is a wasteful number, since it uses less digits than its factorization.

2066317730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175273.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 2066317730 is about 45456.7677029505. The cubic root of 2066317730 is about 1273.6957530516.

The spelling of 2066317730 in words is "two billion, sixty-six million, three hundred seventeen thousand, seven hundred thirty".