2164308012 has 120 divisors (see below), whose sum is σ = 6306355440. Its totient is φ = 643230720.

The previous prime is 2164308011. The next prime is 2164308061. The reversal of 2164308012 is 2108034612.

2164308012 is a `hidden beast` number, since 2 + 1 + 643 + 0 + 8 + 0 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2164308011) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 94312 + ... + 114992.

It is an arithmetic number, because the mean of its divisors is an integer number (52552962).

Almost surely, 2^2164308012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2164308012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3153177720).

2164308012 is an abundant number, since it is smaller than the sum of its proper divisors (4142047428).

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

2164308012 is a wasteful number, since it uses less digits than its factorization.

2164308012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20733 (or 20722 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2164308012 is about 46522.1238982057. The cubic root of 2164308012 is about 1293.5196257731.

The spelling of 2164308012 in words is "two billion, one hundred sixty-four million, three hundred eight thousand, twelve".