136687711131671 has 16 divisors (see below), whose sum is σ = 157768699192128. Its totient is φ = 115995376320000.

The previous prime is 136687711131641. The next prime is 136687711131689. The reversal of 136687711131671 is 176131117786631.

It is a cyclic number.

It is not a de Polignac number, because 136687711131671 - 2³⁸ = 136412833224727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136687711131671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136687711131641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10337231 + ... + 19499583.

It is an arithmetic number, because the mean of its divisors is an integer number (9860543699508).

Almost surely, 2^{136687711131671} is an apocalyptic number.

136687711131671 is a deficient number, since it is larger than the sum of its proper divisors (21080988060457).

136687711131671 is a wasteful number, since it uses less digits than its factorization.

136687711131671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9183562.

The product of its digits is 5334336, while the sum is 59.

The spelling of 136687711131671 in words is "one hundred thirty-six trillion, six hundred eighty-seven billion, seven hundred eleven million, one hundred thirty-one thousand, six hundred seventy-one".