164906368 has 64 divisors (see below), whose sum is σ = 360994320. Its totient is φ = 74414080.

The previous prime is 164906359. The next prime is 164906369. The reversal of 164906368 is 863609461.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×164906368² = 54388220413902848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164906369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243246 + ... + 243922.

Almost surely, 2^164906368 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 164906368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180497160).

164906368 is an abundant number, since it is smaller than the sum of its proper divisors (196087952).

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

164906368 is a wasteful number, since it uses less digits than its factorization.

164906368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 164906368 is about 12841.5874408112. The cubic root of 164906368 is about 548.3768874495.

The spelling of 164906368 in words is "one hundred sixty-four million, nine hundred six thousand, three hundred sixty-eight".