335146640509 has 2 divisors, whose sum is σ = 335146640510. Its totient is φ = 335146640508.

The previous prime is 335146640417. The next prime is 335146640513. The reversal of 335146640509 is 905046641533.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 284325701284 + 50820939225 = 533222^2 + 225435^2 .

It is an emirp because it is prime and its reverse (905046641533) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-335146640509 is a prime.

It is a super-2 number, since 2×335146640509² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (335146640009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167573320254 + 167573320255.

It is an arithmetic number, because the mean of its divisors is an integer number (167573320255).

Almost surely, 2^335146640509 is an apocalyptic number.

It is an amenable number.

335146640509 is a deficient number, since it is larger than the sum of its proper divisors (1).

335146640509 is an equidigital number, since it uses as much as digits as its factorization.

335146640509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 335146640509 in words is "three hundred thirty-five billion, one hundred forty-six million, six hundred forty thousand, five hundred nine".