136568016 has 60 divisors (see below), whose sum is σ = 411606468. Its totient is φ = 42020352.

The previous prime is 136567993. The next prime is 136568017. The reversal of 136568016 is 610865631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40449600 + 96118416 = 6360^2 + 9804^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136568017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34605 + ... + 38348.

Almost surely, 2^136568016 is an apocalyptic number.

136568016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

136568016 is an abundant number, since it is smaller than the sum of its proper divisors (275038452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136568016 is a wasteful number, since it uses less digits than its factorization.

136568016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72980 (or 72971 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 136568016 is about 11686.2318991196. The cubic root of 136568016 is about 514.9712693307.

The spelling of 136568016 in words is "one hundred thirty-six million, five hundred sixty-eight thousand, sixteen".