221552435416 has 32 divisors (see below), whose sum is σ = 454947973200. Its totient is φ = 100521832320.

The previous prime is 221552435411. The next prime is 221552435471. The reversal of 221552435416 is 614534255122.

221552435416 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 not an unprimeable number, because it can be changed into a prime (221552435411) by changing a digit.

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, 18047355 + ... + 18059626.

Almost surely, 2^221552435416 is an apocalyptic number.

221552435416 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

221552435416 is an abundant number, since it is smaller than the sum of its proper divisors (233395537784).

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

221552435416 is a wasteful number, since it uses less digits than its factorization.

221552435416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36107059 (or 36107055 counting only the distinct ones).

The product of its digits is 288000, while the sum is 40.

The spelling of 221552435416 in words is "two hundred twenty-one billion, five hundred fifty-two million, four hundred thirty-five thousand, four hundred sixteen".