66065452412 has 24 divisors (see below), whose sum is σ = 117391150800. Its totient is φ = 32528843136.

The previous prime is 66065452391. The next prime is 66065452423. The reversal of 66065452412 is 21425456066.

It is a self number, because there is not a number n which added to its sum of digits gives 66065452412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393737 + ... + 535872.

It is an arithmetic number, because the mean of its divisors is an integer number (4891297950).

Almost surely, 2^66065452412 is an apocalyptic number.

It is an amenable number.

66065452412 is a deficient number, since it is larger than the sum of its proper divisors (51325698388).

66065452412 is a wasteful number, since it uses less digits than its factorization.

66065452412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929885 (or 929883 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 66065452412 in words is "sixty-six billion, sixty-five million, four hundred fifty-two thousand, four hundred twelve".