164465517 has 8 divisors (see below), whose sum is σ = 219397824. Its totient is φ = 109588448.

The previous prime is 164465513. The next prime is 164465551. The reversal of 164465517 is 715564461.

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 164465517 - 2² = 164465513 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164465513) 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, 6273 + ... + 19190.

It is an arithmetic number, because the mean of its divisors is an integer number (27424728).

Almost surely, 2^164465517 is an apocalyptic number.

It is an amenable number.

164465517 is a deficient number, since it is larger than the sum of its proper divisors (54932307).

164465517 is a wasteful number, since it uses less digits than its factorization.

164465517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27619.

The product of its digits is 100800, while the sum is 39.

The square root of 164465517 is about 12824.4109806260. The cubic root of 164465517 is about 547.8877851554.

It can be divided in two parts, 1644 and 65517, that added together give a triangular number (67161 = T₃₆₆).

The spelling of 164465517 in words is "one hundred sixty-four million, four hundred sixty-five thousand, five hundred seventeen".