6522016981 has 2 divisors, whose sum is σ = 6522016982. Its totient is φ = 6522016980.

The previous prime is 6522016967. The next prime is 6522016997. The reversal of 6522016981 is 1896102256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6522016081 + 900 = 80759^2 + 30^2 .

It is a cyclic number.

It is not a de Polignac number, because 6522016981 - 2¹⁹ = 6521492693 is a prime.

It is a super-2 number, since 2×6522016981² = 85073411000904708722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6522316981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3261008490 + 3261008491.

It is an arithmetic number, because the mean of its divisors is an integer number (3261008491).

Almost surely, 2^6522016981 is an apocalyptic number.

It is an amenable number.

6522016981 is a deficient number, since it is larger than the sum of its proper divisors (1).

6522016981 is an equidigital number, since it uses as much as digits as its factorization.

6522016981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 6522016981 is about 80759.0055721342. The cubic root of 6522016981 is about 1868.3603480374.

The spelling of 6522016981 in words is "six billion, five hundred twenty-two million, sixteen thousand, nine hundred eighty-one".