164545955293 has 4 divisors (see below), whose sum is σ = 165127390048. Its totient is φ = 163964520540.

The previous prime is 164545955291. The next prime is 164545955309. The reversal of 164545955293 is 392559545461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 164545955293 - 2¹ = 164545955291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164545955291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290716953 + ... + 290717518.

It is an arithmetic number, because the mean of its divisors is an integer number (41281847512).

Almost surely, 2^164545955293 is an apocalyptic number.

It is an amenable number.

164545955293 is a deficient number, since it is larger than the sum of its proper divisors (581434755).

164545955293 is an equidigital number, since it uses as much as digits as its factorization.

164545955293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581434754.

The product of its digits is 29160000, while the sum is 58.

The spelling of 164545955293 in words is "one hundred sixty-four billion, five hundred forty-five million, nine hundred fifty-five thousand, two hundred ninety-three".