164345414065566 has 64 divisors (see below), whose sum is σ = 337699557651456. Its totient is φ = 53281452240000.

The previous prime is 164345414065537. The next prime is 164345414065579. The reversal of 164345414065566 is 665560414543461.

164345414065566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 12668259456 + ... + 12668272428.

It is an arithmetic number, because the mean of its divisors is an integer number (5276555588304).

Almost surely, 2^{164345414065566} is an apocalyptic number.

164345414065566 is an abundant number, since it is smaller than the sum of its proper divisors (173354143585890).

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

164345414065566 is a wasteful number, since it uses less digits than its factorization.

164345414065566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29777.

The product of its (nonzero) digits is 124416000, while the sum is 60.

The spelling of 164345414065566 in words is "one hundred sixty-four trillion, three hundred forty-five billion, four hundred fourteen million, sixty-five thousand, five hundred sixty-six".