136680406287511 has 4 divisors (see below), whose sum is σ = 136681119578224. Its totient is φ = 136679692996800.

The previous prime is 136680406287497. The next prime is 136680406287527. The reversal of 136680406287511 is 115782604086631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136680406287511 - 2⁹ = 136680406286999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136680406287571) 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, 356357850 + ... + 356741191.

It is an arithmetic number, because the mean of its divisors is an integer number (34170279894556).

Almost surely, 2^{136680406287511} is an apocalyptic number.

136680406287511 is a deficient number, since it is larger than the sum of its proper divisors (713290713).

136680406287511 is an equidigital number, since it uses as much as digits as its factorization.

136680406287511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713290712.

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 136680406287511 in words is "one hundred thirty-six trillion, six hundred eighty billion, four hundred six million, two hundred eighty-seven thousand, five hundred eleven".