2166836748 has 12 divisors (see below), whose sum is σ = 5055952440. Its totient is φ = 722278912.

The previous prime is 2166836743. The next prime is 2166836801. The reversal of 2166836748 is 8476386612.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2166836748.

It is not an unprimeable number, because it can be changed into a prime (2166836743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90284853 + ... + 90284876.

It is an arithmetic number, because the mean of its divisors is an integer number (421329370).

Almost surely, 2^2166836748 is an apocalyptic number.

It is an amenable number.

2166836748 is an abundant number, since it is smaller than the sum of its proper divisors (2889115692).

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

2166836748 is a wasteful number, since it uses less digits than its factorization.

2166836748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180569736 (or 180569734 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 51.

The square root of 2166836748 is about 46549.2937432997. The cubic root of 2166836748 is about 1294.0232042132.

The spelling of 2166836748 in words is "two billion, one hundred sixty-six million, eight hundred thirty-six thousand, seven hundred forty-eight".