216238345462520 has 16 divisors (see below), whose sum is σ = 486536277290760. Its totient is φ = 86495338184992.

The previous prime is 216238345462507. The next prime is 216238345462619. The reversal of 216238345462520 is 25264543832612.

It is a super-3 number, since 3×216238345462520³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2702979318242 + ... + 2702979318321.

Almost surely, 2^{216238345462520} is an apocalyptic number.

216238345462520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216238345462520 is an abundant number, since it is smaller than the sum of its proper divisors (270297931828240).

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

216238345462520 is a wasteful number, since it uses less digits than its factorization.

216238345462520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5405958636574 (or 5405958636570 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 53.

The spelling of 216238345462520 in words is "two hundred sixteen trillion, two hundred thirty-eight billion, three hundred forty-five million, four hundred sixty-two thousand, five hundred twenty".