164345254345601 has 4 divisors (see below), whose sum is σ = 187823147823552. Its totient is φ = 140867360867652.

The previous prime is 164345254345477. The next prime is 164345254345603. The reversal of 164345254345601 is 106543452543461.

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 a de Polignac number, because none of the positive numbers 2^k-164345254345601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164345254345603) 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, 11738946738965 + ... + 11738946738978.

It is an arithmetic number, because the mean of its divisors is an integer number (46955786955888).

Almost surely, 2^{164345254345601} is an apocalyptic number.

It is an amenable number.

164345254345601 is a deficient number, since it is larger than the sum of its proper divisors (23477893477951).

164345254345601 is an equidigital number, since it uses as much as digits as its factorization.

164345254345601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23477893477950.

The product of its (nonzero) digits is 20736000, while the sum is 53.

The spelling of 164345254345601 in words is "one hundred sixty-four trillion, three hundred forty-five billion, two hundred fifty-four million, three hundred forty-five thousand, six hundred one".