136664446 has 8 divisors (see below), whose sum is σ = 206611200. Its totient is φ = 67794048.

The previous prime is 136664419. The next prime is 136664447. The reversal of 136664446 is 644466631.

136664446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 136664399 and 136664408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136664447) 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, 268771 + ... + 269278.

It is an arithmetic number, because the mean of its divisors is an integer number (25826400).

Almost surely, 2^136664446 is an apocalyptic number.

136664446 is a deficient number, since it is larger than the sum of its proper divisors (69946754).

136664446 is a wasteful number, since it uses less digits than its factorization.

136664446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538178.

The product of its digits is 248832, while the sum is 40.

The square root of 136664446 is about 11690.3569663206. The cubic root of 136664446 is about 515.0924470355.

The spelling of 136664446 in words is "one hundred thirty-six million, six hundred sixty-four thousand, four hundred forty-six".