4165850556 has 72 divisors (see below), whose sum is σ = 12422918144. Its totient is φ = 1151845920.

The previous prime is 4165850539. The next prime is 4165850573. The reversal of 4165850556 is 6550585614.

4165850556 is a `hidden beast` number, since 4 + 16 + 5 + 85 + 0 + 556 = 666.

It is an interprime number because it is at equal distance from previous prime (4165850539) and next prime (4165850573).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 258820 + ... + 274443.

Almost surely, 2^4165850556 is an apocalyptic number.

It is an amenable number.

4165850556 is an abundant number, since it is smaller than the sum of its proper divisors (8257067588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4165850556 is a wasteful number, since it uses less digits than its factorization.

4165850556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533311 (or 533306 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 45.

The square root of 4165850556 is about 64543.4005611728. The cubic root of 4165850556 is about 1609.0439079914.

The spelling of 4165850556 in words is "four billion, one hundred sixty-five million, eight hundred fifty thousand, five hundred fifty-six".