164725660992 has 112 divisors (see below), whose sum is σ = 449052078272. Its totient is φ = 53268295680.

The previous prime is 164725660991. The next prime is 164725661017. The reversal of 164725660992 is 299066527461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164725660991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 758643 + ... + 951309.

It is an arithmetic number, because the mean of its divisors is an integer number (4009393556).

Almost surely, 2^164725660992 is an apocalyptic number.

164725660992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164725660992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224526039136).

164725660992 is an abundant number, since it is smaller than the sum of its proper divisors (284326417280).

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

164725660992 is a wasteful number, since it uses less digits than its factorization.

164725660992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192816 (or 192806 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 164725660992 in words is "one hundred sixty-four billion, seven hundred twenty-five million, six hundred sixty thousand, nine hundred ninety-two".