20526220632 has 16 divisors (see below), whose sum is σ = 51315551640. Its totient is φ = 6842073536.

The previous prime is 20526220621. The next prime is 20526220661. The reversal of 20526220632 is 23602262502.

It is a self number, because there is not a number n which added to its sum of digits gives 20526220632.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 427629573 + ... + 427629620.

Almost surely, 2^20526220632 is an apocalyptic number.

It is an amenable number.

20526220632 is an abundant number, since it is smaller than the sum of its proper divisors (30789331008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20526220632 is a wasteful number, since it uses less digits than its factorization.

20526220632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855259202 (or 855259198 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The spelling of 20526220632 in words is "twenty billion, five hundred twenty-six million, two hundred twenty thousand, six hundred thirty-two".