2170740166 has 16 divisors (see below), whose sum is σ = 3940167456. Its totient is φ = 875592576.

The previous prime is 2170740151. The next prime is 2170740181. The reversal of 2170740166 is 6610470712.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2170740151) and next prime (2170740181).

It is a super-2 number, since 2×2170740166² = 9424225736571415112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 4560141 + ... + 4560616.

It is an arithmetic number, because the mean of its divisors is an integer number (246260466).

Almost surely, 2^2170740166 is an apocalyptic number.

2170740166 is a deficient number, since it is larger than the sum of its proper divisors (1769427290).

2170740166 is a wasteful number, since it uses less digits than its factorization.

2170740166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9120783.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 2170740166 is about 46591.2026674564. The cubic root of 2170740166 is about 1294.7997714708.

The spelling of 2170740166 in words is "two billion, one hundred seventy million, seven hundred forty thousand, one hundred sixty-six".