216044053356438 has 64 divisors (see below), whose sum is σ = 495734525952000. Its totient is φ = 69670592519040.

The previous prime is 216044053356431. The next prime is 216044053356451. The reversal of 216044053356438 is 834653350440612.

216044053356438 is a `hidden beast` number, since 2 + 1 + 6 + 0 + 4 + 40 + 5 + 3 + 3 + 564 + 38 = 666.

It is a super-3 number, since 3×216044053356438³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216044053356431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13931638 + ... + 25023561.

It is an arithmetic number, because the mean of its divisors is an integer number (7745851968000).

Almost surely, 2^{216044053356438} is an apocalyptic number.

216044053356438 is an abundant number, since it is smaller than the sum of its proper divisors (279690472595562).

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

216044053356438 is a wasteful number, since it uses less digits than its factorization.

216044053356438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38958554 (or 38958548 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 54.

The spelling of 216044053356438 in words is "two hundred sixteen trillion, forty-four billion, fifty-three million, three hundred fifty-six thousand, four hundred thirty-eight".