164608319500 has 96 divisors (see below), whose sum is σ = 372133472256. Its totient is φ = 63558432000.

The previous prime is 164608319489. The next prime is 164608319509. The reversal of 164608319500 is 5913806461.

It is a super-2 number, since 2×164608319500² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164608319509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2314470 + ... + 2384530.

It is an arithmetic number, because the mean of its divisors is an integer number (3876390336).

Almost surely, 2^164608319500 is an apocalyptic number.

164608319500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164608319500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186066736128).

164608319500 is an abundant number, since it is smaller than the sum of its proper divisors (207525152756).

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

164608319500 is a wasteful number, since it uses less digits than its factorization.

164608319500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70244 (or 70232 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 164608319500 in words is "one hundred sixty-four billion, six hundred eight million, three hundred nineteen thousand, five hundred".