65835653857 has 16 divisors (see below), whose sum is σ = 71124458832. Its totient is φ = 60716851200.

The previous prime is 65835653827. The next prime is 65835653879. The reversal of 65835653857 is 75835653856.

It is a happy number.

65835653857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 16304480721 + 49531173136 = 127689^2 + 222556^2 .

It is a cyclic number.

It is not a de Polignac number, because 65835653857 - 2¹¹ = 65835651809 is a prime.

It is a super-3 number, since 3×65835653857³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65835653795 and 65835653804.

It is not an unprimeable number, because it can be changed into a prime (65835653827) 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, 31098 + ... + 364195.

It is an arithmetic number, because the mean of its divisors is an integer number (4445278677).

Almost surely, 2^65835653857 is an apocalyptic number.

It is an amenable number.

65835653857 is a deficient number, since it is larger than the sum of its proper divisors (5288804975).

65835653857 is a wasteful number, since it uses less digits than its factorization.

65835653857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395508.

The product of its digits is 90720000, while the sum is 61.

Subtracting 65835653857 from its reverse (75835653856), we obtain a palindrome (9999999999).

The spelling of 65835653857 in words is "sixty-five billion, eight hundred thirty-five million, six hundred fifty-three thousand, eight hundred fifty-seven".