164443061471 has 16 divisors (see below), whose sum is σ = 188335826784. Its totient is φ = 142235157504.

The previous prime is 164443061441. The next prime is 164443061477. The reversal of 164443061471 is 174160344461.

It is a cyclic number.

It is not a de Polignac number, because 164443061471 - 2¹⁰ = 164443060447 is a prime.

It is a super-3 number, since 3×164443061471³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164443061477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1588790 + ... + 1689123.

It is an arithmetic number, because the mean of its divisors is an integer number (11770989174).

Almost surely, 2^164443061471 is an apocalyptic number.

164443061471 is a deficient number, since it is larger than the sum of its proper divisors (23892765313).

164443061471 is a wasteful number, since it uses less digits than its factorization.

164443061471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278170.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 164443061471 in words is "one hundred sixty-four billion, four hundred forty-three million, sixty-one thousand, four hundred seventy-one".