16273221908 has 48 divisors (see below), whose sum is σ = 29378764800. Its totient is φ = 7883123040.

The previous prime is 16273221893. The next prime is 16273221971. The reversal of 16273221908 is 80912237261.

It is a super-2 number, since 2×16273221908² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17707073 + ... + 17707991.

It is an arithmetic number, because the mean of its divisors is an integer number (612057600).

Almost surely, 2^16273221908 is an apocalyptic number.

It is an amenable number.

16273221908 is a deficient number, since it is larger than the sum of its proper divisors (13105542892).

16273221908 is a wasteful number, since it uses less digits than its factorization.

16273221908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820 (or 1818 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 16273221908 in words is "sixteen billion, two hundred seventy-three million, two hundred twenty-one thousand, nine hundred eight".