6330021091 has 2 divisors, whose sum is σ = 6330021092. Its totient is φ = 6330021090.

The previous prime is 6330021073. The next prime is 6330021097. The reversal of 6330021091 is 1901200336.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6330021091 - 2²¹ = 6327923939 is a prime.

It is not a weakly prime, because it can be changed into another prime (6330021097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3165010545 + 3165010546.

It is an arithmetic number, because the mean of its divisors is an integer number (3165010546).

Almost surely, 2^6330021091 is an apocalyptic number.

6330021091 is a deficient number, since it is larger than the sum of its proper divisors (1).

6330021091 is an equidigital number, since it uses as much as digits as its factorization.

6330021091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 6330021091 is about 79561.4296691556. The cubic root of 6330021091 is about 1849.8437745847.

The spelling of 6330021091 in words is "six billion, three hundred thirty million, twenty-one thousand, ninety-one".