164817589660 has 12 divisors (see below), whose sum is σ = 346116938328. Its totient is φ = 65927035856.

The previous prime is 164817589631. The next prime is 164817589663. The reversal of 164817589660 is 66985718461.

It is a happy number.

It is a super-2 number, since 2×164817589660² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164817589663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4120439722 + ... + 4120439761.

It is an arithmetic number, because the mean of its divisors is an integer number (28843078194).

Almost surely, 2^164817589660 is an apocalyptic number.

164817589660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164817589660 is an abundant number, since it is smaller than the sum of its proper divisors (181299348668).

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

164817589660 is a wasteful number, since it uses less digits than its factorization.

164817589660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8240879492 (or 8240879490 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 164817589660 in words is "one hundred sixty-four billion, eight hundred seventeen million, five hundred eighty-nine thousand, six hundred sixty".