12162411661 has 8 divisors (see below), whose sum is σ = 12756974400. Its totient is φ = 11573329152.

The previous prime is 12162411659. The next prime is 12162411671. The reversal of 12162411661 is 16611426121.

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

It is not a de Polignac number, because 12162411661 - 2¹ = 12162411659 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 (12162411671) 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, 1365511 + ... + 1374388.

It is an arithmetic number, because the mean of its divisors is an integer number (1594621800).

Almost surely, 2^12162411661 is an apocalyptic number.

It is an amenable number.

12162411661 is a deficient number, since it is larger than the sum of its proper divisors (594562739).

12162411661 is a wasteful number, since it uses less digits than its factorization.

12162411661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740115.

The product of its digits is 3456, while the sum is 31.

Adding to 12162411661 its reverse (16611426121), we get a palindrome (28773837782).

The spelling of 12162411661 in words is "twelve billion, one hundred sixty-two million, four hundred eleven thousand, six hundred sixty-one".