20235632536 has 16 divisors (see below), whose sum is σ = 43362069840. Its totient is φ = 8672413920.

The previous prime is 20235632489. The next prime is 20235632537. The reversal of 20235632536 is 63523653202.

It is a junction number, because it is equal to n+sod(n) for n = 20235632495 and 20235632504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20235632537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180675235 + ... + 180675346.

It is an arithmetic number, because the mean of its divisors is an integer number (2710129365).

Almost surely, 2^20235632536 is an apocalyptic number.

It is an amenable number.

20235632536 is an abundant number, since it is smaller than the sum of its proper divisors (23126437304).

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

20235632536 is a wasteful number, since it uses less digits than its factorization.

20235632536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361350594 (or 361350590 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 37.

The spelling of 20235632536 in words is "twenty billion, two hundred thirty-five million, six hundred thirty-two thousand, five hundred thirty-six".