164731086816 has 48 divisors (see below), whose sum is σ = 447330114000. Its totient is φ = 53016900608.

The previous prime is 164731086811. The next prime is 164731086823. The reversal of 164731086816 is 618680137461.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164731086811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29582541 + ... + 29588108.

It is an arithmetic number, because the mean of its divisors is an integer number (9319377375).

Almost surely, 2^164731086816 is an apocalyptic number.

164731086816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

164731086816 is an abundant number, since it is smaller than the sum of its proper divisors (282599027184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164731086816 is a wasteful number, since it uses less digits than its factorization.

164731086816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59170691 (or 59170683 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 164731086816 in words is "one hundred sixty-four billion, seven hundred thirty-one million, eighty-six thousand, eight hundred sixteen".