20950656096 has 96 divisors (see below), whose sum is σ = 56899584000. Its totient is φ = 6742794240.

The previous prime is 20950656091. The next prime is 20950656149. The reversal of 20950656096 is 69065605902.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×20950656096² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20950656091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1328385 + ... + 1344063.

It is an arithmetic number, because the mean of its divisors is an integer number (592704000).

Almost surely, 2^20950656096 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20950656096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28449792000).

20950656096 is an abundant number, since it is smaller than the sum of its proper divisors (35948927904).

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

20950656096 is a wasteful number, since it uses less digits than its factorization.

20950656096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16172 (or 16164 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 48.

The spelling of 20950656096 in words is "twenty billion, nine hundred fifty million, six hundred fifty-six thousand, ninety-six".