164512606215461 has 16 divisors (see below), whose sum is σ = 192658155029760. Its totient is φ = 137530066907520.

The previous prime is 164512606215443. The next prime is 164512606215553.

164512606215461 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-164512606215461 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164512606275461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85400966 + ... + 87306071.

It is an arithmetic number, because the mean of its divisors is an integer number (12041134689360).

Almost surely, 2^{164512606215461} is an apocalyptic number.

It is an amenable number.

164512606215461 is a deficient number, since it is larger than the sum of its proper divisors (28145548814299).

164512606215461 is a wasteful number, since it uses less digits than its factorization.

164512606215461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172710404.

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 164512606215461 in words is "one hundred sixty-four trillion, five hundred twelve billion, six hundred six million, two hundred fifteen thousand, four hundred sixty-one".