65361999999 has 16 divisors (see below), whose sum is σ = 90010027872. Its totient is φ = 42166844928.

The previous prime is 65361999919. The next prime is 65362000051. The reversal of 65361999999 is 99999916356.

It is not a de Polignac number, because 65361999999 - 2¹¹ = 65361997951 is a prime.

65361999999 is a modest number, since divided by 999999 gives 65361 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 65361999999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65361999919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2804022 + ... + 2827235.

It is an arithmetic number, because the mean of its divisors is an integer number (5625626742).

Almost surely, 2^65361999999 is an apocalyptic number.

65361999999 is a deficient number, since it is larger than the sum of its proper divisors (24648027873).

65361999999 is a wasteful number, since it uses less digits than its factorization.

65361999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5631386.

The product of its digits is 286978140, while the sum is 75.

The spelling of 65361999999 in words is "sixty-five billion, three hundred sixty-one million, nine hundred ninety-nine thousand, nine hundred ninety-nine".