12020652165 has 16 divisors (see below), whose sum is σ = 19276469568. Its totient is φ = 6396539136.

The previous prime is 12020652143. The next prime is 12020652169. The reversal of 12020652165 is 56125602021.

It is not a de Polignac number, because 12020652165 - 2¹⁰ = 12020651141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020652169) 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, 897844 + ... + 911133.

It is an arithmetic number, because the mean of its divisors is an integer number (1204779348).

Almost surely, 2^12020652165 is an apocalyptic number.

12020652165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12020652165 is a deficient number, since it is larger than the sum of its proper divisors (7255817403).

12020652165 is a wasteful number, since it uses less digits than its factorization.

12020652165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809428.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 12020652165 in words is "twelve billion, twenty million, six hundred fifty-two thousand, one hundred sixty-five".