216671516598 has 16 divisors (see below), whose sum is σ = 433833806016. Its totient is φ = 72142043400.

The previous prime is 216671516533. The next prime is 216671516599. The reversal of 216671516598 is 895615176612.

It is a super-2 number, since 2×216671516598² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216671516599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20443128 + ... + 20453723.

It is an arithmetic number, because the mean of its divisors is an integer number (27114612876).

Almost surely, 2^216671516598 is an apocalyptic number.

216671516598 is an abundant number, since it is smaller than the sum of its proper divisors (217162289418).

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

216671516598 is a wasteful number, since it uses less digits than its factorization.

216671516598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40897739.

The product of its digits is 5443200, while the sum is 57.

The spelling of 216671516598 in words is "two hundred sixteen billion, six hundred seventy-one million, five hundred sixteen thousand, five hundred ninety-eight".