4005612166 has 4 divisors (see below), whose sum is σ = 6008418252. Its totient is φ = 2002806082.

The previous prime is 4005612157. The next prime is 4005612181. The reversal of 4005612166 is 6612165004.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001403040 + ... + 1001403043.

It is an arithmetic number, because the mean of its divisors is an integer number (1502104563).

Almost surely, 2^4005612166 is an apocalyptic number.

4005612166 is a deficient number, since it is larger than the sum of its proper divisors (2002806086).

4005612166 is a wasteful number, since it uses less digits than its factorization.

4005612166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002806085.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 4005612166 is about 63289.9057196327. The cubic root of 4005612166 is about 1588.1431015519.

The spelling of 4005612166 in words is "four billion, five million, six hundred twelve thousand, one hundred sixty-six".