221925073896 has 24 divisors (see below), whose sum is σ = 601047075330. Its totient is φ = 73975024608.

The previous prime is 221925073879. The next prime is 221925073907. The reversal of 221925073896 is 698370529122.

221925073896 is a `hidden beast` number, since 2 + 2 + 1 + 9 + 250 + 7 + 389 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 215494637796 + 6430436100 = 464214^2 + 80190^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1541146275 + ... + 1541146418.

Almost surely, 2^221925073896 is an apocalyptic number.

It is an amenable number.

221925073896 is an abundant number, since it is smaller than the sum of its proper divisors (379122001434).

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

221925073896 is a wasteful number, since it uses less digits than its factorization.

221925073896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082292705 (or 3082292698 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 221925073896 in words is "two hundred twenty-one billion, nine hundred twenty-five million, seventy-three thousand, eight hundred ninety-six".