12065571670 has 32 divisors (see below), whose sum is σ = 23530354848. Its totient is φ = 4436694528.

The previous prime is 12065571641. The next prime is 12065571671. The reversal of 12065571670 is 7617556021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12065571671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 817969 + ... + 832588.

It is an arithmetic number, because the mean of its divisors is an integer number (735323589).

Almost surely, 2^12065571670 is an apocalyptic number.

12065571670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12065571670 is a deficient number, since it is larger than the sum of its proper divisors (11464783178).

12065571670 is a wasteful number, since it uses less digits than its factorization.

12065571670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650624.

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 12065571670 in words is "twelve billion, sixty-five million, five hundred seventy-one thousand, six hundred seventy".