136620816 has 40 divisors (see below), whose sum is σ = 353831520. Its totient is φ = 45424896.

The previous prime is 136620779. The next prime is 136620821. The reversal of 136620816 is 618026631.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16716 + ... + 23508.

It is an arithmetic number, because the mean of its divisors is an integer number (8845788).

Almost surely, 2^136620816 is an apocalyptic number.

136620816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

136620816 is an abundant number, since it is smaller than the sum of its proper divisors (217210704).

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

136620816 is a wasteful number, since it uses less digits than its factorization.

136620816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7223 (or 7217 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 136620816 is about 11688.4907494509. The cubic root of 136620816 is about 515.0376269363.

The spelling of 136620816 in words is "one hundred thirty-six million, six hundred twenty thousand, eight hundred sixteen".