21965503096 has 32 divisors (see below), whose sum is σ = 42538222080. Its totient is φ = 10622383200.

The previous prime is 21965503081. The next prime is 21965503099. The reversal of 21965503096 is 69030556912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21965503099) 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, 424675 + ... + 473581.

It is an arithmetic number, because the mean of its divisors is an integer number (1329319440).

Almost surely, 2^21965503096 is an apocalyptic number.

It is an amenable number.

21965503096 is a deficient number, since it is larger than the sum of its proper divisors (20572718984).

21965503096 is a wasteful number, since it uses less digits than its factorization.

21965503096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50755 (or 50751 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 46.

The spelling of 21965503096 in words is "twenty-one billion, nine hundred sixty-five million, five hundred three thousand, ninety-six".