65804959386 has 112 divisors (see below), whose sum is σ = 151530197280. Its totient is φ = 21416153760.

The previous prime is 65804959357. The next prime is 65804959387. The reversal of 65804959386 is 68395940856.

65804959386 is a `hidden beast` number, since 6 + 58 + 0 + 495 + 93 + 8 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (65804959387) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 12359721 + ... + 12365043.

It is an arithmetic number, because the mean of its divisors is an integer number (1352948190).

Almost surely, 2^65804959386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65804959386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75765098640).

65804959386 is an abundant number, since it is smaller than the sum of its proper divisors (85725237894).

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

65804959386 is a wasteful number, since it uses less digits than its factorization.

65804959386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5543 (or 5528 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 63.

The spelling of 65804959386 in words is "sixty-five billion, eight hundred four million, nine hundred fifty-nine thousand, three hundred eighty-six".