164197784358 has 12 divisors (see below), whose sum is σ = 355761866148. Its totient is φ = 54732594780.

The previous prime is 164197784329. The next prime is 164197784419. The reversal of 164197784358 is 853487791461.

164197784358 is a `hidden beast` number, since 1 + 6 + 4 + 197 + 7 + 8 + 435 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 164197784295 and 164197784304.

It is a congruent number.

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, 4561049548 + ... + 4561049583.

It is an arithmetic number, because the mean of its divisors is an integer number (29646822179).

Almost surely, 2^164197784358 is an apocalyptic number.

164197784358 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

164197784358 is an abundant number, since it is smaller than the sum of its proper divisors (191564081790).

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

164197784358 is a wasteful number, since it uses less digits than its factorization.

164197784358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9122099139 (or 9122099136 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 63.

The spelling of 164197784358 in words is "one hundred sixty-four billion, one hundred ninety-seven million, seven hundred eighty-four thousand, three hundred fifty-eight".