65155812829 has 4 divisors (see below), whose sum is σ = 65194994176. Its totient is φ = 65116631484.

The previous prime is 65155812817. The next prime is 65155812853. The reversal of 65155812829 is 92821855156.

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 65155812829 - 2⁵ = 65155812797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65155812889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19588179 + ... + 19591504.

It is an arithmetic number, because the mean of its divisors is an integer number (16298748544).

Almost surely, 2^65155812829 is an apocalyptic number.

It is an amenable number.

65155812829 is a deficient number, since it is larger than the sum of its proper divisors (39181347).

65155812829 is a wasteful number, since it uses less digits than its factorization.

65155812829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39181346.

The product of its digits is 1728000, while the sum is 52.

The spelling of 65155812829 in words is "sixty-five billion, one hundred fifty-five million, eight hundred twelve thousand, eight hundred twenty-nine".