136662425551 has 2 divisors, whose sum is σ = 136662425552. Its totient is φ = 136662425550.

The previous prime is 136662425527. The next prime is 136662425597. The reversal of 136662425551 is 155524266631.

It is an a-pointer prime, because the next prime (136662425597) can be obtained adding 136662425551 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136662425551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136662422551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68331212775 + 68331212776.

It is an arithmetic number, because the mean of its divisors is an integer number (68331212776).

Almost surely, 2^136662425551 is an apocalyptic number.

136662425551 is a deficient number, since it is larger than the sum of its proper divisors (1).

136662425551 is an equidigital number, since it uses as much as digits as its factorization.

136662425551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296000, while the sum is 46.

The spelling of 136662425551 in words is "one hundred thirty-six billion, six hundred sixty-two million, four hundred twenty-five thousand, five hundred fifty-one".