164081050506 has 12 divisors (see below), whose sum is σ = 355508942802. Its totient is φ = 54693683496.

The previous prime is 164081050499. The next prime is 164081050571. The reversal of 164081050506 is 605050180461.

164081050506 is a `hidden beast` number, since 1 + 6 + 40 + 8 + 105 + 0 + 506 = 666.

It can be written as a sum of positive squares in only one way, i.e., 162456557481 + 1624493025 = 403059^2 + 40305^2 .

It is a super-2 number, since 2×164081050506² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4557806941 + ... + 4557806976.

Almost surely, 2^164081050506 is an apocalyptic number.

164081050506 is an abundant number, since it is smaller than the sum of its proper divisors (191427892296).

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

164081050506 is a wasteful number, since it uses less digits than its factorization.

164081050506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9115613925 (or 9115613922 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 164081050506 in words is "one hundred sixty-four billion, eighty-one million, fifty thousand, five hundred six".