20633250616 has 16 divisors (see below), whose sum is σ = 42204376440. Its totient is φ = 9378750240.

The previous prime is 20633250613. The next prime is 20633250641. The reversal of 20633250616 is 61605233602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20633250613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117234291 + ... + 117234466.

Almost surely, 2^20633250616 is an apocalyptic number.

It is an amenable number.

20633250616 is an abundant number, since it is smaller than the sum of its proper divisors (21571125824).

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

20633250616 is a wasteful number, since it uses less digits than its factorization.

20633250616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234468774 (or 234468770 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 20633250616 in words is "twenty billion, six hundred thirty-three million, two hundred fifty thousand, six hundred sixteen".