668025112 has 8 divisors (see below), whose sum is σ = 1252547100. Its totient is φ = 334012552.

The previous prime is 668025101. The next prime is 668025131. The reversal of 668025112 is 211520866.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×668025112³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41751562 + ... + 41751577.

Almost surely, 2^668025112 is an apocalyptic number.

It is an amenable number.

668025112 is a deficient number, since it is larger than the sum of its proper divisors (584521988).

668025112 is a wasteful number, since it uses less digits than its factorization.

668025112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83503145 (or 83503141 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 668025112 is about 25846.1817682999. The cubic root of 668025112 is about 874.1734178241.

Adding to 668025112 its reverse (211520866), we get a palindrome (879545978).

The spelling of 668025112 in words is "six hundred sixty-eight million, twenty-five thousand, one hundred twelve".