12152002661 has 8 divisors (see below), whose sum is σ = 12237973440. Its totient is φ = 12066189408.

The previous prime is 12152002651. The next prime is 12152002739. The reversal of 12152002661 is 16620025121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12152002661 - 2²² = 12147808357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12152002661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12152002631) 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, 117650 + ... + 195308.

It is an arithmetic number, because the mean of its divisors is an integer number (1529746680).

Almost surely, 2^12152002661 is an apocalyptic number.

It is an amenable number.

12152002661 is a deficient number, since it is larger than the sum of its proper divisors (85970779).

12152002661 is an equidigital number, since it uses as much as digits as its factorization.

12152002661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78763.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 12152002661 its reverse (16620025121), we get a palindrome (28772027782).

The spelling of 12152002661 in words is "twelve billion, one hundred fifty-two million, two thousand, six hundred sixty-one".