126604691611 has 2 divisors, whose sum is σ = 126604691612. Its totient is φ = 126604691610.

The previous prime is 126604691597. The next prime is 126604691639. The reversal of 126604691611 is 116196406621.

It is a weak prime.

It is an emirp because it is prime and its reverse (116196406621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126604691611 is a prime.

It is not a weakly prime, because it can be changed into another prime (126604691111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63302345805 + 63302345806.

It is an arithmetic number, because the mean of its divisors is an integer number (63302345806).

Almost surely, 2^126604691611 is an apocalyptic number.

126604691611 is a deficient number, since it is larger than the sum of its proper divisors (1).

126604691611 is an equidigital number, since it uses as much as digits as its factorization.

126604691611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 126604691611 in words is "one hundred twenty-six billion, six hundred four million, six hundred ninety-one thousand, six hundred eleven".