12065666570 has 16 divisors (see below), whose sum is σ = 22180290048. Its totient is φ = 4723579920.

The previous prime is 12065666537. The next prime is 12065666579. The reversal of 12065666570 is 7566656021.

It is a super-4 number, since 4×12065666570⁴ (a number of 41 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (12065666579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12835346 + ... + 12836285.

It is an arithmetic number, because the mean of its divisors is an integer number (1386268128).

Almost surely, 2^12065666570 is an apocalyptic number.

12065666570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12065666570 is a deficient number, since it is larger than the sum of its proper divisors (10114623478).

12065666570 is a wasteful number, since it uses less digits than its factorization.

12065666570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25671685.

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 12065666570 in words is "twelve billion, sixty-five million, six hundred sixty-six thousand, five hundred seventy".