65155812830 has 16 divisors (see below), whose sum is σ = 119775792960. Its totient is φ = 25507807392.

The previous prime is 65155812817. The next prime is 65155812853. The reversal of 65155812830 is 3821855156.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 69314225 + ... + 69315164.

It is an arithmetic number, because the mean of its divisors is an integer number (7485987060).

Almost surely, 2^65155812830 is an apocalyptic number.

65155812830 is a deficient number, since it is larger than the sum of its proper divisors (54619980130).

65155812830 is a wasteful number, since it uses less digits than its factorization.

65155812830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138629443.

The product of its (nonzero) digits is 288000, while the sum is 44.

The spelling of 65155812830 in words is "sixty-five billion, one hundred fifty-five million, eight hundred twelve thousand, eight hundred thirty".