136340415761 has 4 divisors (see below), whose sum is σ = 148734999024. Its totient is φ = 123945832500.

The previous prime is 136340415721. The next prime is 136340415773. The reversal of 136340415761 is 167514043631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 167514043631 = 11 ⋅15228549421.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136340415761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (136340415721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6197291615 + ... + 6197291636.

It is an arithmetic number, because the mean of its divisors is an integer number (37183749756).

Almost surely, 2^136340415761 is an apocalyptic number.

136340415761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

136340415761 is a deficient number, since it is larger than the sum of its proper divisors (12394583263).

136340415761 is a wasteful number, since it uses less digits than its factorization.

136340415761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12394583262.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 136340415761 in words is "one hundred thirty-six billion, three hundred forty million, four hundred fifteen thousand, seven hundred sixty-one".