165634812830 has 48 divisors (see below), whose sum is σ = 311640981120. Its totient is φ = 63308786688.

The previous prime is 165634812829. The next prime is 165634812841. The reversal of 165634812830 is 38218436561.

165634812830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2698259 + ... + 2758961.

It is an arithmetic number, because the mean of its divisors is an integer number (6492520440).

Almost surely, 2^165634812830 is an apocalyptic number.

165634812830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165634812830 is a deficient number, since it is larger than the sum of its proper divisors (146006168290).

165634812830 is an equidigital number, since it uses as much as digits as its factorization.

165634812830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60933 (or 60836 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 165634812830 in words is "one hundred sixty-five billion, six hundred thirty-four million, eight hundred twelve thousand, eight hundred thirty".