65542575215 has 16 divisors (see below), whose sum is σ = 85006977888. Its totient is φ = 48225926016.

The previous prime is 65542575211. The next prime is 65542575221. The reversal of 65542575215 is 51257524556.

65542575215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 65542575215 - 2² = 65542575211 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65542575215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65542575211) 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, 1802117 + ... + 1838126.

It is an arithmetic number, because the mean of its divisors is an integer number (5312936118).

Almost surely, 2^65542575215 is an apocalyptic number.

65542575215 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

65542575215 is a deficient number, since it is larger than the sum of its proper divisors (19464402673).

65542575215 is a wasteful number, since it uses less digits than its factorization.

65542575215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3640538.

The product of its digits is 2100000, while the sum is 47.

The spelling of 65542575215 in words is "sixty-five billion, five hundred forty-two million, five hundred seventy-five thousand, two hundred fifteen".