64816536 has 32 divisors (see below), whose sum is σ = 167270400. Its totient is φ = 20908320.

The previous prime is 64816519. The next prime is 64816547. The reversal of 64816536 is 63561846.

64816536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64816494 and 64816503.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 42816 + ... + 44303.

It is an arithmetic number, because the mean of its divisors is an integer number (5227200).

Almost surely, 2^64816536 is an apocalyptic number.

It is an amenable number.

64816536 is an abundant number, since it is smaller than the sum of its proper divisors (102453864).

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

64816536 is a wasteful number, since it uses less digits than its factorization.

64816536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87159 (or 87155 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 64816536 is about 8050.8717540401. The cubic root of 64816536 is about 401.6939330178.

The spelling of 64816536 in words is "sixty-four million, eight hundred sixteen thousand, five hundred thirty-six".