218164144031 has 8 divisors (see below), whose sum is σ = 231001652160. Its totient is φ = 205327116288.

The previous prime is 218164144027. The next prime is 218164144067. The reversal of 218164144031 is 130441461812.

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

It is not a de Polignac number, because 218164144031 - 2² = 218164144027 is a prime.

It is a super-2 number, since 2×218164144031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 218164143982 and 218164144000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218164144091) 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, 1284095 + ... + 1444031.

It is an arithmetic number, because the mean of its divisors is an integer number (28875206520).

Almost surely, 2^218164144031 is an apocalyptic number.

218164144031 is a deficient number, since it is larger than the sum of its proper divisors (12837508129).

218164144031 is a wasteful number, since it uses less digits than its factorization.

218164144031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240193.

The product of its (nonzero) digits is 18432, while the sum is 35.

The spelling of 218164144031 in words is "two hundred eighteen billion, one hundred sixty-four million, one hundred forty-four thousand, thirty-one".