164253242352461 has 4 divisors (see below), whose sum is σ = 164259155236800. Its totient is φ = 164247329468124.

The previous prime is 164253242352457. The next prime is 164253242352497.

164253242352461 is nontrivially palindromic in base 10.

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 164253242352461 - 2² = 164253242352457 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 (164253242358461) 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, 2956400501 + ... + 2956456058.

It is an arithmetic number, because the mean of its divisors is an integer number (41064788809200).

Almost surely, 2^{164253242352461} is an apocalyptic number.

It is an amenable number.

164253242352461 is a deficient number, since it is larger than the sum of its proper divisors (5912884339).

164253242352461 is an equidigital number, since it uses as much as digits as its factorization.

164253242352461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5912884338.

The product of its digits is 8294400, while the sum is 50.

The spelling of 164253242352461 in words is "one hundred sixty-four trillion, two hundred fifty-three billion, two hundred forty-two million, three hundred fifty-two thousand, four hundred sixty-one".