201528569151 has 24 divisors (see below), whose sum is σ = 358273013280. Its totient is φ = 106300783296.

The previous prime is 201528569111. The next prime is 201528569167. The reversal of 201528569151 is 151965825102.

201528569151 is a `hidden beast` number, since 2 + 0 + 15 + 28 + 569 + 1 + 51 = 666.

It is not a de Polignac number, because 201528569151 - 2¹¹ = 201528567103 is a prime.

It is a super-2 number, since 2×201528569151² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201528569097 and 201528569106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201528569101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123032496 + ... + 123034133.

It is an arithmetic number, because the mean of its divisors is an integer number (14928042220).

Almost surely, 2^201528569151 is an apocalyptic number.

201528569151 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

201528569151 is a deficient number, since it is larger than the sum of its proper divisors (156744444129).

201528569151 is a wasteful number, since it uses less digits than its factorization.

201528569151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246066655 (or 246066652 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 45.

The spelling of 201528569151 in words is "two hundred one billion, five hundred twenty-eight million, five hundred sixty-nine thousand, one hundred fifty-one".