2166045528 has 32 divisors (see below), whose sum is σ = 5437785600. Its totient is φ = 718992288.

The previous prime is 2166045509. The next prime is 2166045533. The reversal of 2166045528 is 8255406612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183076 + ... + 194547.

It is an arithmetic number, because the mean of its divisors is an integer number (169930800).

Almost surely, 2^2166045528 is an apocalyptic number.

It is an amenable number.

2166045528 is an abundant number, since it is smaller than the sum of its proper divisors (3271740072).

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

2166045528 is a wasteful number, since it uses less digits than its factorization.

2166045528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377871 (or 377867 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 2166045528 is about 46540.7942347356. The cubic root of 2166045528 is about 1293.8656809347.

The spelling of 2166045528 in words is "two billion, one hundred sixty-six million, forty-five thousand, five hundred twenty-eight".