65816241855 has 64 divisors (see below), whose sum is σ = 129752706048. Its totient is φ = 27741864960.

The previous prime is 65816241847. The next prime is 65816241893. The reversal of 65816241855 is 55814261856.

It is not a de Polignac number, because 65816241855 - 2³ = 65816241847 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 65816241798 and 65816241807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1211475 + ... + 1264635.

It is an arithmetic number, because the mean of its divisors is an integer number (2027386032).

Almost surely, 2^65816241855 is an apocalyptic number.

65816241855 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

65816241855 is a deficient number, since it is larger than the sum of its proper divisors (63936464193).

65816241855 is a wasteful number, since it uses less digits than its factorization.

65816241855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54096.

The product of its digits is 2304000, while the sum is 51.

The spelling of 65816241855 in words is "sixty-five billion, eight hundred sixteen million, two hundred forty-one thousand, eight hundred fifty-five".