216124858368071 has 4 divisors (see below), whose sum is σ = 216124888040952. Its totient is φ = 216124828695192.

The previous prime is 216124858368011. The next prime is 216124858368079. The reversal of 216124858368071 is 170863858421612.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216124858368071 is a prime.

It is a super-2 number, since 2×216124858368071² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216124858367995 and 216124858368013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216124858368079) 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 3 ways as a sum of consecutive naturals, for example, 4420061 + ... + 21255273.

It is an arithmetic number, because the mean of its divisors is an integer number (54031222010238).

Almost surely, 2^{216124858368071} is an apocalyptic number.

216124858368071 is a deficient number, since it is larger than the sum of its proper divisors (29672881).

216124858368071 is a wasteful number, since it uses less digits than its factorization.

216124858368071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29672880.

The product of its (nonzero) digits is 30965760, while the sum is 62.

The spelling of 216124858368071 in words is "two hundred sixteen trillion, one hundred twenty-four billion, eight hundred fifty-eight million, three hundred sixty-eight thousand, seventy-one".