164242642153 has 4 divisors (see below), whose sum is σ = 172886991760. Its totient is φ = 155598292548.

The previous prime is 164242642129. The next prime is 164242642169. The reversal of 164242642153 is 351246242461.

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, and also an emirpimes, since its reverse is a distinct semiprime: 351246242461 = 102077 ⋅3440993.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164242642153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164242642183) 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 3 ways as a sum of consecutive naturals, for example, 4322174775 + ... + 4322174812.

It is an arithmetic number, because the mean of its divisors is an integer number (43221747940).

Almost surely, 2^164242642153 is an apocalyptic number.

It is an amenable number.

164242642153 is a deficient number, since it is larger than the sum of its proper divisors (8644349607).

164242642153 is an equidigital number, since it uses as much as digits as its factorization.

164242642153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8644349606.

The product of its digits is 276480, while the sum is 40.

The spelling of 164242642153 in words is "one hundred sixty-four billion, two hundred forty-two million, six hundred forty-two thousand, one hundred fifty-three".