164465565564461 has 8 divisors (see below), whose sum is σ = 187963495595904. Its totient is φ = 140968347842160.

The previous prime is 164465565564397. The next prime is 164465565564467.

164465565564461 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164465565564461 - 2⁶ = 164465565564397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164465565564391 and 164465565564400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164465565564467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177582425 + ... + 178506158.

It is an arithmetic number, because the mean of its divisors is an integer number (23495436949488).

Almost surely, 2^{164465565564461} is an apocalyptic number.

It is an amenable number.

164465565564461 is a deficient number, since it is larger than the sum of its proper divisors (23497930031443).

164465565564461 is an equidigital number, since it uses as much as digits as its factorization.

164465565564461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356154571.

The product of its digits is 1244160000, while the sum is 68.

The spelling of 164465565564461 in words is "one hundred sixty-four trillion, four hundred sixty-five billion, five hundred sixty-five million, five hundred sixty-four thousand, four hundred sixty-one".