336621020081 has 2 divisors, whose sum is σ = 336621020082. Its totient is φ = 336621020080.

The previous prime is 336621020033. The next prime is 336621020137. The reversal of 336621020081 is 180020126633.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 322719431056 + 13901589025 = 568084^2 + 117905^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-336621020081 is a prime.

It is a super-2 number, since 2×336621020081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (336621010081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168310510040 + 168310510041.

It is an arithmetic number, because the mean of its divisors is an integer number (168310510041).

Almost surely, 2^336621020081 is an apocalyptic number.

It is an amenable number.

336621020081 is a deficient number, since it is larger than the sum of its proper divisors (1).

336621020081 is an equidigital number, since it uses as much as digits as its factorization.

336621020081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 336621020081 in words is "three hundred thirty-six billion, six hundred twenty-one million, twenty thousand, eighty-one".