164851639596 has 144 divisors (see below), whose sum is σ = 502180456960. Its totient is φ = 44543416320.

The previous prime is 164851639591. The next prime is 164851639597. The reversal of 164851639596 is 695936158461.

164851639596 is a `hidden beast` number, since 1 + 6 + 4 + 8 + 5 + 1 + 6 + 39 + 596 = 666.

164851639596 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (164851639591) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2732841 + ... + 2792511.

Almost surely, 2^164851639596 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164851639596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251090228480).

164851639596 is an abundant number, since it is smaller than the sum of its proper divisors (337328817364).

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

164851639596 is a wasteful number, since it uses less digits than its factorization.

164851639596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60284 (or 60279 counting only the distinct ones).

The product of its digits is 41990400, while the sum is 63.

The spelling of 164851639596 in words is "one hundred sixty-four billion, eight hundred fifty-one million, six hundred thirty-nine thousand, five hundred ninety-six".