65436560 has 60 divisors (see below), whose sum is σ = 176989788. Its totient is φ = 22434048.

The previous prime is 65436439. The next prime is 65436563. The reversal of 65436560 is 6563456.

It can be written as a sum of positive squares in 2 ways, for example, as 12845056 + 52591504 = 3584^2 + 7252^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 65436560.

It is not an unprimeable number, because it can be changed into a prime (65436563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4427 + ... + 12266.

Almost surely, 2^65436560 is an apocalyptic number.

It is an amenable number.

65436560 is an abundant number, since it is smaller than the sum of its proper divisors (111553228).

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

65436560 is a wasteful number, since it uses less digits than its factorization.

65436560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16720 (or 16707 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 65436560 is about 8089.2867423525. The cubic root of 65436560 is about 402.9707158331.

The spelling of 65436560 in words is "sixty-five million, four hundred thirty-six thousand, five hundred sixty".