65685394371 has 48 divisors (see below), whose sum is σ = 93235946400. Its totient is φ = 41079768576.

The previous prime is 65685394363. The next prime is 65685394381. The reversal of 65685394371 is 17349358656.

It is not a de Polignac number, because 65685394371 - 2³ = 65685394363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65685394381) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26952165 + ... + 26954601.

It is an arithmetic number, because the mean of its divisors is an integer number (1942415550).

Almost surely, 2^65685394371 is an apocalyptic number.

65685394371 is a deficient number, since it is larger than the sum of its proper divisors (27550552029).

65685394371 is a wasteful number, since it uses less digits than its factorization.

65685394371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2676 (or 2617 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 57.

The spelling of 65685394371 in words is "sixty-five billion, six hundred eighty-five million, three hundred ninety-four thousand, three hundred seventy-one".