65160400 has 30 divisors (see below), whose sum is σ = 156548822. Its totient is φ = 26064000.

The previous prime is 65160397. The next prime is 65160401. The reversal of 65160400 is 406156.

It can be written as a sum of positive squares in 3 ways, for example, as 968256 + 64192144 = 984^2 + 8012^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65160401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81051 + ... + 81850.

Almost surely, 2^65160400 is an apocalyptic number.

It is an amenable number.

65160400 is an abundant number, since it is smaller than the sum of its proper divisors (91388422).

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

65160400 is a wasteful number, since it uses less digits than its factorization.

65160400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162919 (or 162908 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 65160400 is about 8072.1992046777. The cubic root of 65160400 is about 402.4030346518.

Adding to 65160400 its reverse (406156), we get a palindrome (65566556).

The spelling of 65160400 in words is "sixty-five million, one hundred sixty thousand, four hundred".