12006885653 has 4 divisors (see below), whose sum is σ = 13722155040. Its totient is φ = 10291616268.

The previous prime is 12006885607. The next prime is 12006885677. The reversal of 12006885653 is 35658860021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35658860021 = 127249 ⋅280229.

It is a cyclic number.

It is not a de Polignac number, because 12006885653 - 2²⁴ = 11990108437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12006885853) 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, 857634683 + ... + 857634696.

It is an arithmetic number, because the mean of its divisors is an integer number (3430538760).

Almost surely, 2^12006885653 is an apocalyptic number.

It is an amenable number.

12006885653 is a deficient number, since it is larger than the sum of its proper divisors (1715269387).

12006885653 is an equidigital number, since it uses as much as digits as its factorization.

12006885653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715269386.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 12006885653 in words is "twelve billion, six million, eight hundred eighty-five thousand, six hundred fifty-three".