164501506 has 64 divisors (see below), whose sum is σ = 292481280. Its totient is φ = 68739840.

The previous prime is 164501489. The next prime is 164501507. The reversal of 164501506 is 605105461.

It is not an unprimeable number, because it can be changed into a prime (164501507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1597051 + ... + 1597153.

It is an arithmetic number, because the mean of its divisors is an integer number (4570020).

Almost surely, 2^164501506 is an apocalyptic number.

164501506 is a deficient number, since it is larger than the sum of its proper divisors (127979774).

164501506 is a wasteful number, since it uses less digits than its factorization.

164501506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 164501506 is about 12825.8140482388. The cubic root of 164501506 is about 547.9277459037.

Adding to 164501506 its reverse (605105461), we get a palindrome (769606967).

It can be divided in two parts, 16450 and 1506, that added together give a square (17956 = 134²).

The spelling of 164501506 in words is "one hundred sixty-four million, five hundred one thousand, five hundred six".