66067412 has 12 divisors (see below), whose sum is σ = 115953600. Its totient is φ = 32937816.

The previous prime is 66067411. The next prime is 66067429. The reversal of 66067412 is 21476066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66067411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22412 + ... + 25187.

It is an arithmetic number, because the mean of its divisors is an integer number (9662800).

Almost surely, 2^66067412 is an apocalyptic number.

It is an amenable number.

66067412 is a deficient number, since it is larger than the sum of its proper divisors (49886188).

66067412 is a wasteful number, since it uses less digits than its factorization.

66067412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47950 (or 47948 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 66067412 is about 8128.1862675507. The cubic root of 66067412 is about 404.2615451798.

The spelling of 66067412 in words is "sixty-six million, sixty-seven thousand, four hundred twelve".