221423416008 has 32 divisors (see below), whose sum is σ = 586120808160. Its totient is φ = 69466169600.

The previous prime is 221423415979. The next prime is 221423416021. The reversal of 221423416008 is 800614324122.

It is a self number, because there is not a number n which added to its sum of digits gives 221423416008.

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, 271351818 + ... + 271352633.

It is an arithmetic number, because the mean of its divisors is an integer number (18316275255).

Almost surely, 2^221423416008 is an apocalyptic number.

It is an amenable number.

221423416008 is an abundant number, since it is smaller than the sum of its proper divisors (364697392152).

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

221423416008 is a wasteful number, since it uses less digits than its factorization.

221423416008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542704477 (or 542704473 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The spelling of 221423416008 in words is "two hundred twenty-one billion, four hundred twenty-three million, four hundred sixteen thousand, eight".