164991424199461 has 8 divisors (see below), whose sum is σ = 165632941194944. Its totient is φ = 164350635789600.

The previous prime is 164991424199341. The next prime is 164991424199477.

164991424199461 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 164991424199461 - 2³⁹ = 164441668385573 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 (164991427199461) 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, 181692615 + ... + 182598436.

It is an arithmetic number, because the mean of its divisors is an integer number (20704117649368).

Almost surely, 2^{164991424199461} is an apocalyptic number.

It is an amenable number.

164991424199461 is a deficient number, since it is larger than the sum of its proper divisors (641516995483).

164991424199461 is a wasteful number, since it uses less digits than its factorization.

164991424199461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364292811.

The product of its digits is 120932352, while the sum is 70.

The spelling of 164991424199461 in words is "one hundred sixty-four trillion, nine hundred ninety-one billion, four hundred twenty-four million, one hundred ninety-nine thousand, four hundred sixty-one".