164689896 has 64 divisors (see below), whose sum is σ = 477204480. Its totient is φ = 46388160.

The previous prime is 164689883. The next prime is 164689919. The reversal of 164689896 is 698986461.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5025 + ... + 18831.

It is an arithmetic number, because the mean of its divisors is an integer number (7456320).

Almost surely, 2^164689896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164689896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238602240).

164689896 is an abundant number, since it is smaller than the sum of its proper divisors (312514584).

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

164689896 is a wasteful number, since it uses less digits than its factorization.

164689896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13894 (or 13890 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 57.

The square root of 164689896 is about 12833.1561199886. The cubic root of 164689896 is about 548.1368315851.

The spelling of 164689896 in words is "one hundred sixty-four million, six hundred eighty-nine thousand, eight hundred ninety-six".