164675564443 has 8 divisors (see below), whose sum is σ = 177346135008. Its totient is φ = 152005453824.

The previous prime is 164675564363. The next prime is 164675564461. The reversal of 164675564443 is 344465576461.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164675564443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164675564843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1119771 + ... + 1258267.

It is an arithmetic number, because the mean of its divisors is an integer number (22168266876).

Almost surely, 2^164675564443 is an apocalyptic number.

164675564443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

164675564443 is a deficient number, since it is larger than the sum of its proper divisors (12670570565).

164675564443 is a wasteful number, since it uses less digits than its factorization.

164675564443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229973.

The product of its digits is 29030400, while the sum is 55.

The spelling of 164675564443 in words is "one hundred sixty-four billion, six hundred seventy-five million, five hundred sixty-four thousand, four hundred forty-three".