164006421066 has 24 divisors (see below), whose sum is σ = 355470785280. Its totient is φ = 54649800936.

The previous prime is 164006420989. The next prime is 164006421067. The reversal of 164006421066 is 660124600461.

164006421066 is a `hidden beast` number, since 1 + 6 + 4 + 0 + 0 + 642 + 1 + 0 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 164006421066.

It is not an unprimeable number, because it can be changed into a prime (164006421067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1530580 + ... + 1634223.

It is an arithmetic number, because the mean of its divisors is an integer number (14811282720).

Almost surely, 2^164006421066 is an apocalyptic number.

164006421066 is an abundant number, since it is smaller than the sum of its proper divisors (191464364214).

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

164006421066 is a wasteful number, since it uses less digits than its factorization.

164006421066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167690 (or 3167687 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 164006421066 in words is "one hundred sixty-four billion, six million, four hundred twenty-one thousand, sixty-six".