136388266497 has 48 divisors (see below), whose sum is σ = 226698645888. Its totient is φ = 77401474560.

The previous prime is 136388266463. The next prime is 136388266499. The reversal of 136388266497 is 794662883631.

136388266497 is a `hidden beast` number, since 1 + 3 + 6 + 3 + 8 + 82 + 66 + 497 = 666.

It is not a de Polignac number, because 136388266497 - 2⁷ = 136388266369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (136388266499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5651218 + ... + 5675300.

It is an arithmetic number, because the mean of its divisors is an integer number (4722888456).

Almost surely, 2^136388266497 is an apocalyptic number.

It is an amenable number.

136388266497 is a deficient number, since it is larger than the sum of its proper divisors (90310379391).

136388266497 is a wasteful number, since it uses less digits than its factorization.

136388266497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24710 (or 24707 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 63.

The spelling of 136388266497 in words is "one hundred thirty-six billion, three hundred eighty-eight million, two hundred sixty-six thousand, four hundred ninety-seven".