216697131591116 has 48 divisors (see below), whose sum is σ = 415511654826240. Its totient is φ = 98066067933120.

The previous prime is 216697131591089. The next prime is 216697131591163. The reversal of 216697131591116 is 611195131796612.

It is a super-3 number, since 3×216697131591116³ (a number of 44 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427644281 + ... + 428150703.

It is an arithmetic number, because the mean of its divisors is an integer number (8656492808880).

Almost surely, 2^{216697131591116} is an apocalyptic number.

It is an amenable number.

216697131591116 is a deficient number, since it is larger than the sum of its proper divisors (198814523235124).

216697131591116 is a wasteful number, since it uses less digits than its factorization.

216697131591116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549134 (or 549132 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 59.

The spelling of 216697131591116 in words is "two hundred sixteen trillion, six hundred ninety-seven billion, one hundred thirty-one million, five hundred ninety-one thousand, one hundred sixteen".