216164163131 has 8 divisors (see below), whose sum is σ = 250731993600. Its totient is φ = 182518141608.

The previous prime is 216164163121. The next prime is 216164163133. The reversal of 216164163131 is 131361461612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216164163131 - 2¹⁰ = 216164162107 is a prime.

It is a super-2 number, since 2×216164163131² (a number of 23 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 = 216164163091 and 216164163100.

It is not an unprimeable number, because it can be changed into a prime (216164163133) 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, 230451731 + ... + 230452668.

It is an arithmetic number, because the mean of its divisors is an integer number (31341499200).

Almost surely, 2^216164163131 is an apocalyptic number.

216164163131 is a deficient number, since it is larger than the sum of its proper divisors (34567830469).

216164163131 is an equidigital number, since it uses as much as digits as its factorization.

216164163131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460904473.

The product of its digits is 15552, while the sum is 35.

The spelling of 216164163131 in words is "two hundred sixteen billion, one hundred sixty-four million, one hundred sixty-three thousand, one hundred thirty-one".