136166663 has 4 divisors (see below), whose sum is σ = 140559168. Its totient is φ = 131774160.

The previous prime is 136166659. The next prime is 136166677. The reversal of 136166663 is 366661631.

136166663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 136166663 - 2² = 136166659 is a prime.

It is a super-2 number, since 2×136166663² = 37082720225111138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136166603) 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, 2196206 + ... + 2196267.

It is an arithmetic number, because the mean of its divisors is an integer number (35139792).

Almost surely, 2^136166663 is an apocalyptic number.

136166663 is a deficient number, since it is larger than the sum of its proper divisors (4392505).

136166663 is an equidigital number, since it uses as much as digits as its factorization.

136166663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4392504.

The product of its digits is 69984, while the sum is 38.

The square root of 136166663 is about 11669.0472190321. The cubic root of 136166663 is about 514.4662997839.

The spelling of 136166663 in words is "one hundred thirty-six million, one hundred sixty-six thousand, six hundred sixty-three".