164243790233 has 8 divisors (see below), whose sum is σ = 165384261000. Its totient is φ = 163103828608.

The previous prime is 164243790229. The next prime is 164243790253. The reversal of 164243790233 is 332097342461.

It can be written as a sum of positive squares in 4 ways, for example, as 322453849 + 163921336384 = 17957^2 + 404872^2 .

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 164243790233 - 2² = 164243790229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164243790203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531935 + ... + 781947.

It is an arithmetic number, because the mean of its divisors is an integer number (20673032625).

Almost surely, 2^164243790233 is an apocalyptic number.

It is an amenable number.

164243790233 is a deficient number, since it is larger than the sum of its proper divisors (1140470767).

164243790233 is a wasteful number, since it uses less digits than its factorization.

164243790233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254571.

The product of its (nonzero) digits is 653184, while the sum is 44.

The spelling of 164243790233 in words is "one hundred sixty-four billion, two hundred forty-three million, seven hundred ninety thousand, two hundred thirty-three".