2132021668 has 12 divisors (see below), whose sum is σ = 4264043392. Its totient is φ = 913723560.

The previous prime is 2132021609. The next prime is 2132021669. The reversal of 2132021668 is 8661202312.

2132021668 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2132021669) 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, 38071788 + ... + 38071843.

Almost surely, 2^2132021668 is an apocalyptic number.

2132021668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2132021668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2132021668 is a wasteful number, since it uses less digits than its factorization.

2132021668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76143642 (or 76143640 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 2132021668 is about 46173.8201581805. The cubic root of 2132021668 is about 1287.0552922680.

The spelling of 2132021668 in words is "two billion, one hundred thirty-two million, twenty-one thousand, six hundred sixty-eight".