12151105301666 has 8 divisors (see below), whose sum is σ = 19298814302700. Its totient is φ = 5718167200768.

The previous prime is 12151105301663. The next prime is 12151105301669. The reversal of 12151105301666 is 66610350115121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12151105301663) and next prime (12151105301669).

It can be written as a sum of positive squares in 2 ways, for example, as 11878120996225 + 272984305441 = 3446465^2 + 522479^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12151105301663) 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, 178692724991 + ... + 178692725058.

Almost surely, 2^{12151105301666} is an apocalyptic number.

12151105301666 is a deficient number, since it is larger than the sum of its proper divisors (7147709001034).

12151105301666 is a wasteful number, since it uses less digits than its factorization.

12151105301666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357385450068.

The product of its (nonzero) digits is 32400, while the sum is 38.

Adding to 12151105301666 its reverse (66610350115121), we get a palindrome (78761455416787).

The spelling of 12151105301666 in words is "twelve trillion, one hundred fifty-one billion, one hundred five million, three hundred one thousand, six hundred sixty-six".