136866330 has 96 divisors (see below), whose sum is σ = 381573504. Its totient is φ = 33948288.

The previous prime is 136866263. The next prime is 136866347. The reversal of 136866330 is 33668631.

136866330 is a `hidden beast` number, since 13 + 6 + 8 + 6 + 633 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75697 + ... + 77483.

It is an arithmetic number, because the mean of its divisors is an integer number (3974724).

Almost surely, 2^136866330 is an apocalyptic number.

136866330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 136866330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190786752).

136866330 is an abundant number, since it is smaller than the sum of its proper divisors (244707174).

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

136866330 is a wasteful number, since it uses less digits than its factorization.

136866330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860 (or 1857 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 136866330 is about 11698.9884178078. The cubic root of 136866330 is about 515.3459578878.

The spelling of 136866330 in words is "one hundred thirty-six million, eight hundred sixty-six thousand, three hundred thirty".