20528670227 has 16 divisors (see below), whose sum is σ = 22202500320. Its totient is φ = 18868550400.

The previous prime is 20528670203. The next prime is 20528670233. The reversal of 20528670227 is 72207682502.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20528670227 - 2⁸ = 20528669971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20528670277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3121799 + ... + 3128367.

It is an arithmetic number, because the mean of its divisors is an integer number (1387656270).

Almost surely, 2^20528670227 is an apocalyptic number.

20528670227 is a deficient number, since it is larger than the sum of its proper divisors (1673830093).

20528670227 is a wasteful number, since it uses less digits than its factorization.

20528670227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7574.

The product of its (nonzero) digits is 188160, while the sum is 41.

The spelling of 20528670227 in words is "twenty billion, five hundred twenty-eight million, six hundred seventy thousand, two hundred twenty-seven".