2133723660 has 24 divisors (see below), whose sum is σ = 5974426416. Its totient is φ = 568992960.

The previous prime is 2133723653. The next prime is 2133723667. The reversal of 2133723660 is 663273312.

It is an interprime number because it is at equal distance from previous prime (2133723653) and next prime (2133723667).

It is not an unprimeable number, because it can be changed into a prime (2133723667) 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, 17780971 + ... + 17781090.

It is an arithmetic number, because the mean of its divisors is an integer number (248934434).

Almost surely, 2^2133723660 is an apocalyptic number.

2133723660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2133723660 is an abundant number, since it is smaller than the sum of its proper divisors (3840702756).

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

2133723660 is a wasteful number, since it uses less digits than its factorization.

2133723660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35562073 (or 35562071 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 33.

The square root of 2133723660 is about 46192.2467520254. The cubic root of 2133723660 is about 1287.3976864058.

Adding to 2133723660 its reverse (663273312), we get a palindrome (2796996972).

The spelling of 2133723660 in words is "two billion, one hundred thirty-three million, seven hundred twenty-three thousand, six hundred sixty".