618335066651 has 2 divisors, whose sum is σ = 618335066652. Its totient is φ = 618335066650.

The previous prime is 618335066603. The next prime is 618335066681. The reversal of 618335066651 is 156660533816.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 618335066651 - 2¹⁰ = 618335065627 is a prime.

It is a super-2 number, since 2×618335066651² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 618335066651.

It is not a weakly prime, because it can be changed into another prime (618335066681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309167533325 + 309167533326.

It is an arithmetic number, because the mean of its divisors is an integer number (309167533326).

Almost surely, 2^618335066651 is an apocalyptic number.

618335066651 is a deficient number, since it is larger than the sum of its proper divisors (1).

618335066651 is an equidigital number, since it uses as much as digits as its factorization.

618335066651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2332800, while the sum is 50.

The spelling of 618335066651 in words is "six hundred eighteen billion, three hundred thirty-five million, sixty-six thousand, six hundred fifty-one".