164736506 has 32 divisors (see below), whose sum is σ = 278087040. Its totient is φ = 72532800.

The previous prime is 164736503. The next prime is 164736521. The reversal of 164736506 is 605637461.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 164736506.

It is not an unprimeable number, because it can be changed into a prime (164736503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357116 + ... + 357576.

It is an arithmetic number, because the mean of its divisors is an integer number (8690220).

Almost surely, 2^164736506 is an apocalyptic number.

164736506 is a deficient number, since it is larger than the sum of its proper divisors (113350534).

164736506 is a wasteful number, since it uses less digits than its factorization.

164736506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 164736506 is about 12834.9719906200. The cubic root of 164736506 is about 548.1885373434.

The spelling of 164736506 in words is "one hundred sixty-four million, seven hundred thirty-six thousand, five hundred six".