164645514 has 64 divisors (see below), whose sum is σ = 404714880. Its totient is φ = 49196160.

The previous prime is 164645497. The next prime is 164645519. The reversal of 164645514 is 415546461.

164645514 is a `hidden beast` number, since 1 + 6 + 4 + 645 + 5 + 1 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (164645519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41464 + ... + 45260.

It is an arithmetic number, because the mean of its divisors is an integer number (6323670).

Almost surely, 2^164645514 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164645514, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202357440).

164645514 is an abundant number, since it is smaller than the sum of its proper divisors (240069366).

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

164645514 is a wasteful number, since it uses less digits than its factorization.

164645514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892 (or 3886 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 164645514 is about 12831.4268107643. The cubic root of 164645514 is about 548.0875883405.

The spelling of 164645514 in words is "one hundred sixty-four million, six hundred forty-five thousand, five hundred fourteen".