65436536 has 96 divisors (see below), whose sum is σ = 148538880. Its totient is φ = 26764800.

The previous prime is 65436439. The next prime is 65436563. The reversal of 65436536 is 63563456.

It is a happy number.

Its product of digits (194400) is a multiple of the sum of its prime divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 65436536.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 788351 + ... + 788433.

It is an arithmetic number, because the mean of its divisors is an integer number (1547280).

Almost surely, 2^65436536 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 65436536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74269440).

65436536 is an abundant number, since it is smaller than the sum of its proper divisors (83102344).

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

65436536 is a wasteful number, since it uses less digits than its factorization.

65436536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 144 counting only the distinct ones).

The product of its digits is 194400, while the sum is 38.

The square root of 65436536 is about 8089.2852589088. The cubic root of 65436536 is about 402.9706665676.

Subtracting from 65436536 its reverse (63563456), we obtain a triangular number (1873080 = T₁₉₃₅).

The spelling of 65436536 in words is "sixty-five million, four hundred thirty-six thousand, five hundred thirty-six".