20663324376 has 32 divisors (see below), whose sum is σ = 52238746800. Its totient is φ = 6810383360.

The previous prime is 20663324371. The next prime is 20663324377. The reversal of 20663324376 is 67342336602.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20663324371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4834785 + ... + 4839056.

Almost surely, 2^20663324376 is an apocalyptic number.

It is an amenable number.

20663324376 is an abundant number, since it is smaller than the sum of its proper divisors (31575422424).

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

20663324376 is a wasteful number, since it uses less digits than its factorization.

20663324376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9673939 (or 9673935 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 42.

The spelling of 20663324376 in words is "twenty billion, six hundred sixty-three million, three hundred twenty-four thousand, three hundred seventy-six".