20526228356 has 48 divisors (see below), whose sum is σ = 37176278832. Its totient is φ = 9910118400.

The previous prime is 20526228347. The next prime is 20526228377. The reversal of 20526228356 is 65382262502.

It can be written as a sum of positive squares in 8 ways, for example, as 6515718400 + 14010509956 = 80720^2 + 118366^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

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, 7233770 + ... + 7236606.

It is an arithmetic number, because the mean of its divisors is an integer number (774505809).

Almost surely, 2^20526228356 is an apocalyptic number.

It is an amenable number.

20526228356 is a deficient number, since it is larger than the sum of its proper divisors (16650050476).

20526228356 is a wasteful number, since it uses less digits than its factorization.

20526228356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3320 (or 3318 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 20526228356 in words is "twenty billion, five hundred twenty-six million, two hundred twenty-eight thousand, three hundred fifty-six".