221423637414 has 16 divisors (see below), whose sum is σ = 506111171328. Its totient is φ = 63263896392.

The previous prime is 221423637377. The next prime is 221423637509. The reversal of 221423637414 is 414736324122.

221423637414 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2635995642 + ... + 2635995725.

It is an arithmetic number, because the mean of its divisors is an integer number (31631948208).

Almost surely, 2^221423637414 is an apocalyptic number.

221423637414 is an abundant number, since it is smaller than the sum of its proper divisors (284687533914).

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

221423637414 is a wasteful number, since it uses less digits than its factorization.

221423637414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5271991379.

The product of its digits is 193536, while the sum is 39.

The spelling of 221423637414 in words is "two hundred twenty-one billion, four hundred twenty-three million, six hundred thirty-seven thousand, four hundred fourteen".