64065136 has 20 divisors (see below), whose sum is σ = 126768672. Its totient is φ = 31350656.

The previous prime is 64065109. The next prime is 64065139. The reversal of 64065136 is 63156046.

64065136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64065098 and 64065107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64065139) 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 in 3 ways as a sum of consecutive naturals, for example, 41845 + ... + 43348.

Almost surely, 2^64065136 is an apocalyptic number.

It is an amenable number.

64065136 is a deficient number, since it is larger than the sum of its proper divisors (62703536).

64065136 is a wasteful number, since it uses less digits than its factorization.

64065136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85248 (or 85242 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 64065136 is about 8004.0699647117. The cubic root of 64065136 is about 400.1356539898.

The spelling of 64065136 in words is "sixty-four million, sixty-five thousand, one hundred thirty-six".