221423677655116 has 6 divisors (see below), whose sum is σ = 387491435896460. Its totient is φ = 110711838827556.

The previous prime is 221423677655057. The next prime is 221423677655161. The reversal of 221423677655116 is 611556776324122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27677959706886 + ... + 27677959706893.

Almost surely, 2^{221423677655116} is an apocalyptic number.

It is an amenable number.

221423677655116 is a deficient number, since it is larger than the sum of its proper divisors (166067758241344).

221423677655116 is a wasteful number, since it uses less digits than its factorization.

221423677655116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55355919413783 (or 55355919413781 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 58.

The spelling of 221423677655116 in words is "two hundred twenty-one trillion, four hundred twenty-three billion, six hundred seventy-seven million, six hundred fifty-five thousand, one hundred sixteen".