136706664 has 64 divisors (see below), whose sum is σ = 358525440. Its totient is φ = 43355840.

The previous prime is 136706629. The next prime is 136706671. The reversal of 136706664 is 466607631.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124759 + ... + 125849.

It is an arithmetic number, because the mean of its divisors is an integer number (5601960).

Almost surely, 2^136706664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136706664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179262720).

136706664 is an abundant number, since it is smaller than the sum of its proper divisors (221818776).

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

136706664 is a wasteful number, since it uses less digits than its factorization.

136706664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350 (or 1346 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 136706664 is about 11692.1625031471. The cubic root of 136706664 is about 515.1454818827.

The spelling of 136706664 in words is "one hundred thirty-six million, seven hundred six thousand, six hundred sixty-four".