136806663 has 32 divisors (see below), whose sum is σ = 214156800. Its totient is φ = 76070016.

The previous prime is 136806653. The next prime is 136806671. The reversal of 136806663 is 366608631.

It is not a de Polignac number, because 136806663 - 2⁴ = 136806647 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136806623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134545 + ... + 135557.

It is an arithmetic number, because the mean of its divisors is an integer number (6692400).

Almost surely, 2^136806663 is an apocalyptic number.

136806663 is a deficient number, since it is larger than the sum of its proper divisors (77350137).

136806663 is a wasteful number, since it uses less digits than its factorization.

136806663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 136806663 is about 11696.4380475425. The cubic root of 136806663 is about 515.2710584909.

The spelling of 136806663 in words is "one hundred thirty-six million, eight hundred six thousand, six hundred sixty-three".