3660166771 has 4 divisors (see below), whose sum is σ = 3663034272. Its totient is φ = 3657299272.

The previous prime is 3660166747. The next prime is 3660166781. The reversal of 3660166771 is 1776610663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1776610663 = 6563 ⋅270701.

It is a cyclic number.

It is not a de Polignac number, because 3660166771 - 2¹¹ = 3660164723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3660166721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1431835 + ... + 1434388.

It is an arithmetic number, because the mean of its divisors is an integer number (915758568).

Almost surely, 2^3660166771 is an apocalyptic number.

3660166771 is a deficient number, since it is larger than the sum of its proper divisors (2867501).

3660166771 is a wasteful number, since it uses less digits than its factorization.

3660166771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867500.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 3660166771 is about 60499.3121531146. The cubic root of 3660166771 is about 1541.1099507836.

The spelling of 3660166771 in words is "three billion, six hundred sixty million, one hundred sixty-six thousand, seven hundred seventy-one".