216538158104 has 16 divisors (see below), whose sum is σ = 429891931800. Its totient is φ = 101900309632.

The previous prime is 216538158103. The next prime is 216538158143. The reversal of 216538158104 is 401851835612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216538158101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 796096034 + ... + 796096305.

Almost surely, 2^216538158104 is an apocalyptic number.

It is an amenable number.

216538158104 is a deficient number, since it is larger than the sum of its proper divisors (213353773696).

216538158104 is a wasteful number, since it uses less digits than its factorization.

216538158104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592192362 (or 1592192358 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 44.

The spelling of 216538158104 in words is "two hundred sixteen billion, five hundred thirty-eight million, one hundred fifty-eight thousand, one hundred four".