208163150001 has 9 divisors (see below), whose sum is σ = 300682082649. Its totient is φ = 138774520836.

The previous prime is 208163149981. The next prime is 208163150023. The reversal of 208163150001 is 100051361802.

The square root of 208163150001 is 456249.

It is a perfect power (a square), and thus also a powerful number.

208163150001 is a `hidden beast` number, since 20 + 8 + 1 + 631 + 5 + 0 + 0 + 0 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 208163150001 - 2⁵ = 208163149969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (208163155001) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1292706 + ... + 1444788.

Almost surely, 2^208163150001 is an apocalyptic number.

208163150001 is the 456249-th square number.

208163150001 is the 228125-th centered octagonal number.

It is an amenable number.

208163150001 is a deficient number, since it is larger than the sum of its proper divisors (92518932648).

208163150001 is an frugal number, since it uses more digits than its factorization.

208163150001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304172 (or 152086 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The spelling of 208163150001 in words is "two hundred eight billion, one hundred sixty-three million, one hundred fifty thousand, one".