164258630648 has 128 divisors (see below), whose sum is σ = 372222000000. Its totient is φ = 67846431744.

The previous prime is 164258630629. The next prime is 164258630671. The reversal of 164258630648 is 846036852461.

It is a self number, because there is not a number n which added to its sum of digits gives 164258630648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53871428 + ... + 53874476.

It is an arithmetic number, because the mean of its divisors is an integer number (2907984375).

Almost surely, 2^164258630648 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 164258630648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186111000000).

164258630648 is an abundant number, since it is smaller than the sum of its proper divisors (207963369352).

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

164258630648 is a wasteful number, since it uses less digits than its factorization.

164258630648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3782 (or 3764 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 53.

The spelling of 164258630648 in words is "one hundred sixty-four billion, two hundred fifty-eight million, six hundred thirty thousand, six hundred forty-eight".