20166152 has 8 divisors (see below), whose sum is σ = 37811550. Its totient is φ = 10083072.

The previous prime is 20166143. The next prime is 20166161. The reversal of 20166152 is 25166102.

It is an interprime number because it is at equal distance from previous prime (20166143) and next prime (20166161).

It can be written as a sum of positive squares in only one way, i.e., 17255716 + 2910436 = 4154^2 + 1706^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1260377 + ... + 1260392.

Almost surely, 2^20166152 is an apocalyptic number.

It is an amenable number.

20166152 is a deficient number, since it is larger than the sum of its proper divisors (17645398).

20166152 is a wasteful number, since it uses less digits than its factorization.

20166152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2520775 (or 2520771 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 20166152 is about 4490.6738915223. The cubic root of 20166152 is about 272.1913661974.

The spelling of 20166152 in words is "twenty million, one hundred sixty-six thousand, one hundred fifty-two".