4166041665 has 32 divisors (see below), whose sum is σ = 6781458816. Its totient is φ = 2183362560.

The previous prime is 4166041643. The next prime is 4166041687. The reversal of 4166041665 is 5661406614.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4166041643) and next prime (4166041687).

It is not a de Polignac number, because 4166041665 - 2⁸ = 4166041409 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1551414 + ... + 1554096.

It is an arithmetic number, because the mean of its divisors is an integer number (211920588).

Almost surely, 2^4166041665 is an apocalyptic number.

It is an amenable number.

4166041665 is a deficient number, since it is larger than the sum of its proper divisors (2615417151).

4166041665 is a wasteful number, since it uses less digits than its factorization.

4166041665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4449.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 4166041665 is about 64544.8810131369. The cubic root of 4166041665 is about 1609.0685126562.

The spelling of 4166041665 in words is "four billion, one hundred sixty-six million, forty-one thousand, six hundred sixty-five".