21923492016 has 40 divisors (see below), whose sum is σ = 56732243904. Its totient is φ = 7295371840.

The previous prime is 21923491991. The next prime is 21923492021. The reversal of 21923492016 is 61029432912.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360870 + ... + 417221.

Almost surely, 2^21923492016 is an apocalyptic number.

It is an amenable number.

21923492016 is an abundant number, since it is smaller than the sum of its proper divisors (34808751888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21923492016 is a wasteful number, since it uses less digits than its factorization.

21923492016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778689 (or 778683 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 21923492016 in words is "twenty-one billion, nine hundred twenty-three million, four hundred ninety-two thousand, sixteen".