164262436445 has 8 divisors (see below), whose sum is σ = 197122187736. Its totient is φ = 131405106496.

The previous prime is 164262436427. The next prime is 164262436477. The reversal of 164262436445 is 544634262461.

It can be written as a sum of positive squares in 4 ways, for example, as 30831496921 + 133430939524 = 175589^2 + 365282^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164262436445 - 2¹⁴ = 164262420061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164262436445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452582 + ... + 730311.

It is an arithmetic number, because the mean of its divisors is an integer number (24640273467).

Almost surely, 2^164262436445 is an apocalyptic number.

It is an amenable number.

164262436445 is a deficient number, since it is larger than the sum of its proper divisors (32859751291).

164262436445 is a wasteful number, since it uses less digits than its factorization.

164262436445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210671.

The product of its digits is 3317760, while the sum is 47.

The spelling of 164262436445 in words is "one hundred sixty-four billion, two hundred sixty-two million, four hundred thirty-six thousand, four hundred forty-five".