166150564 has 6 divisors (see below), whose sum is σ = 290763494. Its totient is φ = 83075280.

The previous prime is 166150561. The next prime is 166150591. The reversal of 166150564 is 465051661.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 152769600 + 13380964 = 12360^2 + 3658^2 .

It is not an unprimeable number, because it can be changed into a prime (166150561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20768817 + ... + 20768824.

Almost surely, 2^166150564 is an apocalyptic number.

It is an amenable number.

166150564 is a deficient number, since it is larger than the sum of its proper divisors (124612930).

166150564 is a wasteful number, since it uses less digits than its factorization.

166150564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41537645 (or 41537643 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 166150564 is about 12889.9404187917. The cubic root of 166150564 is about 549.7525763137.

It can be divided in two parts, 1661 and 50564, that added together give a palindrome (52225).

The spelling of 166150564 in words is "one hundred sixty-six million, one hundred fifty thousand, five hundred sixty-four".