136768816 has 20 divisors (see below), whose sum is σ = 265172512. Its totient is φ = 68337216.

The previous prime is 136768813. The next prime is 136768817. The reversal of 136768816 is 618867631.

It is not an unprimeable number, because it can be changed into a prime (136768813) 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, 39241 + ... + 42583.

Almost surely, 2^136768816 is an apocalyptic number.

136768816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

136768816 is a deficient number, since it is larger than the sum of its proper divisors (128403696).

136768816 is a wasteful number, since it uses less digits than its factorization.

136768816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5908 (or 5902 counting only the distinct ones).

The product of its digits is 290304, while the sum is 46.

The square root of 136768816 is about 11694.8200499195. The cubic root of 136768816 is about 515.2235382363.

The spelling of 136768816 in words is "one hundred thirty-six million, seven hundred sixty-eight thousand, eight hundred sixteen".