2166244032 has 56 divisors (see below), whose sum is σ = 5886445936. Its totient is φ = 702563328.

The previous prime is 2166244021. The next prime is 2166244033. The reversal of 2166244032 is 2304426612.

It is a super-2 number, since 2×2166244032² = 9385226412351234048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2166244033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145363 + ... + 159570.

It is an arithmetic number, because the mean of its divisors is an integer number (105115106).

Almost surely, 2^2166244032 is an apocalyptic number.

It is an amenable number.

2166244032 is an abundant number, since it is smaller than the sum of its proper divisors (3720201904).

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

2166244032 is a wasteful number, since it uses less digits than its factorization.

2166244032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304985 (or 304975 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 2166244032 is about 46542.9267665883. The cubic root of 2166244032 is about 1293.9052045219.

The spelling of 2166244032 in words is "two billion, one hundred sixty-six million, two hundred forty-four thousand, thirty-two".