66113412 has 12 divisors (see below), whose sum is σ = 154264656. Its totient is φ = 22037800.

The previous prime is 66113363. The next prime is 66113449. The reversal of 66113412 is 21431166.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 2754714 + ... + 2754737.

It is an arithmetic number, because the mean of its divisors is an integer number (12855388).

Almost surely, 2^66113412 is an apocalyptic number.

It is an amenable number.

66113412 is an abundant number, since it is smaller than the sum of its proper divisors (88151244).

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

66113412 is a wasteful number, since it uses less digits than its factorization.

66113412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5509458 (or 5509456 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 66113412 is about 8131.0154347412. The cubic root of 66113412 is about 404.3553469311.

Adding to 66113412 its reverse (21431166), we get a palindrome (87544578).

The spelling of 66113412 in words is "sixty-six million, one hundred thirteen thousand, four hundred twelve".