164651312 has 40 divisors (see below), whose sum is σ = 366809856. Its totient is φ = 70134336.

The previous prime is 164651269. The next prime is 164651329. The reversal of 164651312 is 213156461.

It is a happy number.

It is a super-2 number, since 2×164651312² = 54220109086642688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14303 + ... + 23105.

Almost surely, 2^164651312 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 164651312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183404928).

164651312 is an abundant number, since it is smaller than the sum of its proper divisors (202158544).

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

164651312 is a wasteful number, since it uses less digits than its factorization.

164651312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8985 (or 8979 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 164651312 is about 12831.6527384433. The cubic root of 164651312 is about 548.0940219089.

The spelling of 164651312 in words is "one hundred sixty-four million, six hundred fifty-one thousand, three hundred twelve".