4166916021 has 32 divisors (see below), whose sum is σ = 6299493120. Its totient is φ = 2721281472.

The previous prime is 4166915941. The next prime is 4166916029. The reversal of 4166916021 is 1206196614.

4166916021 is a `hidden beast` number, since 41 + 6 + 6 + 9 + 1 + 602 + 1 = 666.

It is not a de Polignac number, because 4166916021 - 2¹¹ = 4166913973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4166916029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1104280 + ... + 1108046.

It is an arithmetic number, because the mean of its divisors is an integer number (196859160).

Almost surely, 2^4166916021 is an apocalyptic number.

It is an amenable number.

4166916021 is a deficient number, since it is larger than the sum of its proper divisors (2132577099).

4166916021 is a wasteful number, since it uses less digits than its factorization.

4166916021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4602 (or 4596 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 4166916021 is about 64551.6538982542. The cubic root of 4166916021 is about 1609.1810735640.

The spelling of 4166916021 in words is "four billion, one hundred sixty-six million, nine hundred sixteen thousand, twenty-one".