66336136 has 8 divisors (see below), whose sum is σ = 124380270. Its totient is φ = 33168064.

The previous prime is 66336133. The next prime is 66336139. The reversal of 66336136 is 63163366.

66336136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (66336133) and next prime (66336139).

It can be written as a sum of positive squares in only one way, i.e., 56160036 + 10176100 = 7494^2 + 3190^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (66336131) by changing a digit.

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 as a sum of consecutive naturals, namely, 4146001 + ... + 4146016.

Almost surely, 2^66336136 is an apocalyptic number.

It is an amenable number.

66336136 is a deficient number, since it is larger than the sum of its proper divisors (58044134).

66336136 is a wasteful number, since it uses less digits than its factorization.

66336136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8292023 (or 8292019 counting only the distinct ones).

The product of its digits is 34992, while the sum is 34.

The square root of 66336136 is about 8144.6998716957. The cubic root of 66336136 is about 404.8089044113.

It can be divided in two parts, 6633 and 6136, that added together give a square (12769 = 113²).

The spelling of 66336136 in words is "sixty-six million, three hundred thirty-six thousand, one hundred thirty-six".