65135155633 has 4 divisors (see below), whose sum is σ = 65176937280. Its totient is φ = 65093373988.

The previous prime is 65135155619. The next prime is 65135155661. The reversal of 65135155633 is 33655153156.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65135155633 - 2²¹ = 65133058481 is a prime.

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 65135155633.

It is not an unprimeable number, because it can be changed into a prime (65135155133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20888485 + ... + 20891602.

It is an arithmetic number, because the mean of its divisors is an integer number (16294234320).

Almost surely, 2^65135155633 is an apocalyptic number.

It is an amenable number.

65135155633 is a deficient number, since it is larger than the sum of its proper divisors (41781647).

65135155633 is a wasteful number, since it uses less digits than its factorization.

65135155633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41781646.

The product of its digits is 607500, while the sum is 43.

The spelling of 65135155633 in words is "sixty-five billion, one hundred thirty-five million, one hundred fifty-five thousand, six hundred thirty-three".