168212183112 has 64 divisors (see below), whose sum is σ = 467412648000. Its totient is φ = 56051937792.

The previous prime is 168212183099. The next prime is 168212183129. The reversal of 168212183112 is 211381212861.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

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, 523128 + ... + 781080.

It is an arithmetic number, because the mean of its divisors is an integer number (7303322625).

Almost surely, 2^168212183112 is an apocalyptic number.

168212183112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168212183112 is an abundant number, since it is smaller than the sum of its proper divisors (299200464888).

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

168212183112 is a wasteful number, since it uses less digits than its factorization.

168212183112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260987 (or 260977 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

Adding to 168212183112 its reverse (211381212861), we get a palindrome (379593395973).

The spelling of 168212183112 in words is "one hundred sixty-eight billion, two hundred twelve million, one hundred eighty-three thousand, one hundred twelve".