21933034616 has 8 divisors (see below), whose sum is σ = 41124439920. Its totient is φ = 10966517304.

The previous prime is 21933034589. The next prime is 21933034633. The reversal of 21933034616 is 61643033912.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 21933034616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1370814656 + ... + 1370814671.

It is an arithmetic number, because the mean of its divisors is an integer number (5140554990).

Almost surely, 2^21933034616 is an apocalyptic number.

It is an amenable number.

21933034616 is a deficient number, since it is larger than the sum of its proper divisors (19191405304).

21933034616 is a wasteful number, since it uses less digits than its factorization.

21933034616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741629333 (or 2741629329 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 38.

The spelling of 21933034616 in words is "twenty-one billion, nine hundred thirty-three million, thirty-four thousand, six hundred sixteen".