164741572133 has 4 divisors (see below), whose sum is σ = 164744353920. Its totient is φ = 164738790348.

The previous prime is 164741572129. The next prime is 164741572141. The reversal of 164741572133 is 331275147461.

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 164741572133 - 2² = 164741572129 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 (164741572103) 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, 1300085 + ... + 1421162.

It is an arithmetic number, because the mean of its divisors is an integer number (41186088480).

Almost surely, 2^164741572133 is an apocalyptic number.

It is an amenable number.

164741572133 is a deficient number, since it is larger than the sum of its proper divisors (2781787).

164741572133 is an equidigital number, since it uses as much as digits as its factorization.

164741572133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2781786.

The product of its digits is 423360, while the sum is 44.

The spelling of 164741572133 in words is "one hundred sixty-four billion, seven hundred forty-one million, five hundred seventy-two thousand, one hundred thirty-three".