21796416011 has 4 divisors (see below), whose sum is σ = 21796714224. Its totient is φ = 21796117800.

The previous prime is 21796416001. The next prime is 21796416017. The reversal of 21796416011 is 11061469712.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 21796416011 - 2²² = 21792221707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21796416017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43226 + ... + 213216.

It is an arithmetic number, because the mean of its divisors is an integer number (5449178556).

Almost surely, 2^21796416011 is an apocalyptic number.

21796416011 is a deficient number, since it is larger than the sum of its proper divisors (298213).

21796416011 is a wasteful number, since it uses less digits than its factorization.

21796416011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298212.

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 21796416011 in words is "twenty-one billion, seven hundred ninety-six million, four hundred sixteen thousand, eleven".