611237116631 has 2 divisors, whose sum is σ = 611237116632. Its totient is φ = 611237116630.

The previous prime is 611237116603. The next prime is 611237116639. The reversal of 611237116631 is 136611732116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 611237116631 - 2¹⁰ = 611237115607 is a prime.

It is a super-2 number, since 2×611237116631² (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 (611237116639) 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, 305618558315 + 305618558316.

It is an arithmetic number, because the mean of its divisors is an integer number (305618558316).

Almost surely, 2^611237116631 is an apocalyptic number.

611237116631 is a deficient number, since it is larger than the sum of its proper divisors (1).

611237116631 is an equidigital number, since it uses as much as digits as its factorization.

611237116631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 38.

Adding to 611237116631 its reverse (136611732116), we get a palindrome (747848848747).

The spelling of 611237116631 in words is "six hundred eleven billion, two hundred thirty-seven million, one hundred sixteen thousand, six hundred thirty-one".