164123437608 has 192 divisors, whose sum is σ = 492116002560. Its totient is φ = 49086217728.

The previous prime is 164123437601. The next prime is 164123437619. The reversal of 164123437608 is 806734321461.

164123437608 is a `hidden beast` number, since 1 + 6 + 4 + 1 + 2 + 3 + 4 + 37 + 608 = 666.

It is not an unprimeable number, because it can be changed into a prime (164123437601) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51496191 + ... + 51499377.

It is an arithmetic number, because the mean of its divisors is an integer number (2563104180).

Almost surely, 2^164123437608 is an apocalyptic number.

164123437608 is a gapful number since it is divisible by the number (18) 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 164123437608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246058001280).

164123437608 is an abundant number, since it is smaller than the sum of its proper divisors (327992564952).

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

164123437608 is a wasteful number, since it uses less digits than its factorization.

164123437608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4736 (or 4729 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 164123437608 in words is "one hundred sixty-four billion, one hundred twenty-three million, four hundred thirty-seven thousand, six hundred eight".