2866166525 has 12 divisors (see below), whose sum is σ = 3557828832. Its totient is φ = 2290493040.

The previous prime is 2866166509. The next prime is 2866166579. The reversal of 2866166525 is 5256616682.

It is not a de Polignac number, because 2866166525 - 2⁴ = 2866166509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2866166525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36857 + ... + 84206.

It is an arithmetic number, because the mean of its divisors is an integer number (296485736).

Almost surely, 2^2866166525 is an apocalyptic number.

2866166525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2866166525 is a deficient number, since it is larger than the sum of its proper divisors (691662307).

2866166525 is a wasteful number, since it uses less digits than its factorization.

2866166525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122020 (or 122015 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 47.

The square root of 2866166525 is about 53536.5905246122. The cubic root of 2866166525 is about 1420.4756928063.

The spelling of 2866166525 in words is "two billion, eight hundred sixty-six million, one hundred sixty-six thousand, five hundred twenty-five".