65361961 has 16 divisors (see below), whose sum is σ = 76170240. Its totient is φ = 54930960.

The previous prime is 65361953. The next prime is 65361971. The reversal of 65361961 is 16916356.

65361961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65361961 - 2³ = 65361953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65361961.

It is not an unprimeable number, because it can be changed into a prime (65361931) 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 15 ways as a sum of consecutive naturals, for example, 172270 + ... + 172648.

It is an arithmetic number, because the mean of its divisors is an integer number (4760640).

Almost surely, 2^65361961 is an apocalyptic number.

It is an amenable number.

65361961 is a deficient number, since it is larger than the sum of its proper divisors (10808279).

65361961 is a wasteful number, since it uses less digits than its factorization.

65361961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804.

The product of its digits is 29160, while the sum is 37.

The square root of 65361961 is about 8084.6744523203. The cubic root of 65361961 is about 402.8175260203.

The spelling of 65361961 in words is "sixty-five million, three hundred sixty-one thousand, nine hundred sixty-one".