164565705486 has 32 divisors (see below), whose sum is σ = 405084814848. Its totient is φ = 43401944160.

The previous prime is 164565705431. The next prime is 164565705487. The reversal of 164565705486 is 684507565461.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164565705487) 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, 150700650 + ... + 150701741.

It is an arithmetic number, because the mean of its divisors is an integer number (12658900464).

Almost surely, 2^164565705486 is an apocalyptic number.

164565705486 is an abundant number, since it is smaller than the sum of its proper divisors (240519109362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164565705486 is a wasteful number, since it uses less digits than its factorization.

164565705486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301402416.

The product of its (nonzero) digits is 24192000, while the sum is 57.

The spelling of 164565705486 in words is "one hundred sixty-four billion, five hundred sixty-five million, seven hundred five thousand, four hundred eighty-six".