6732221081 has 2 divisors, whose sum is σ = 6732221082. Its totient is φ = 6732221080.

The previous prime is 6732221063. The next prime is 6732221123. The reversal of 6732221081 is 1801222376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6731382025 + 839056 = 82045^2 + 916^2 .

It is a cyclic number.

It is not a de Polignac number, because 6732221081 - 2¹⁰ = 6732220057 is a prime.

It is a super-2 number, since 2×6732221081² = 90645601366921617122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6732221011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3366110540 + 3366110541.

It is an arithmetic number, because the mean of its divisors is an integer number (3366110541).

Almost surely, 2^6732221081 is an apocalyptic number.

It is an amenable number.

6732221081 is a deficient number, since it is larger than the sum of its proper divisors (1).

6732221081 is an equidigital number, since it uses as much as digits as its factorization.

6732221081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 6732221081 is about 82050.1132296598. The cubic root of 6732221081 is about 1888.2208541232.

The spelling of 6732221081 in words is "six billion, seven hundred thirty-two million, two hundred twenty-one thousand, eighty-one".