20608232436 has 96 divisors (see below), whose sum is σ = 59241624960. Its totient is φ = 6142521600.

The previous prime is 20608232419. The next prime is 20608232479. The reversal of 20608232436 is 63423280602.

20608232436 is a `hidden beast` number, since 2 + 0 + 608 + 2 + 3 + 2 + 43 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20608232436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69721 + ... + 214656.

It is an arithmetic number, because the mean of its divisors is an integer number (617100260).

Almost surely, 2^20608232436 is an apocalyptic number.

It is an amenable number.

20608232436 is an abundant number, since it is smaller than the sum of its proper divisors (38633392524).

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

20608232436 is a wasteful number, since it uses less digits than its factorization.

20608232436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284462 (or 284454 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 20608232436 in words is "twenty billion, six hundred eight million, two hundred thirty-two thousand, four hundred thirty-six".