21416011912 has 16 divisors (see below), whose sum is σ = 40157568000. Its totient is φ = 10707327120.

The previous prime is 21416011909. The next prime is 21416011973. The reversal of 21416011912 is 21911061412.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64737 + ... + 216847.

It is an arithmetic number, because the mean of its divisors is an integer number (2509848000).

Almost surely, 2^21416011912 is an apocalyptic number.

It is an amenable number.

21416011912 is a deficient number, since it is larger than the sum of its proper divisors (18741556088).

21416011912 is a wasteful number, since it uses less digits than its factorization.

21416011912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169716 (or 169712 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 21416011912 in words is "twenty-one billion, four hundred sixteen million, eleven thousand, nine hundred twelve".