20956555096 has 32 divisors (see below), whose sum is σ = 41368766400. Its totient is φ = 9925074720.

The previous prime is 20956555051. The next prime is 20956555111. The reversal of 20956555096 is 69055565902.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1502571 + ... + 1516453.

It is an arithmetic number, because the mean of its divisors is an integer number (1292773950).

Almost surely, 2^20956555096 is an apocalyptic number.

It is an amenable number.

20956555096 is a deficient number, since it is larger than the sum of its proper divisors (20412211304).

20956555096 is a wasteful number, since it uses less digits than its factorization.

20956555096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23839 (or 23835 counting only the distinct ones).

The product of its (nonzero) digits is 3645000, while the sum is 52.

The spelling of 20956555096 in words is "twenty billion, nine hundred fifty-six million, five hundred fifty-five thousand, ninety-six".