12661066110602 has 48 divisors (see below), whose sum is σ = 25043867079840. Its totient is φ = 4745153744352.

The previous prime is 12661066110601. The next prime is 12661066110709. The reversal of 12661066110602 is 20601166016621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (12661066110601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261503228 + ... + 261551639.

It is an arithmetic number, because the mean of its divisors is an integer number (521747230830).

Almost surely, 2^{12661066110602} is an apocalyptic number.

12661066110602 is a deficient number, since it is larger than the sum of its proper divisors (12382800969238).

12661066110602 is a wasteful number, since it uses less digits than its factorization.

12661066110602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523054915 (or 523054908 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 12661066110602 in words is "twelve trillion, six hundred sixty-one billion, sixty-six million, one hundred ten thousand, six hundred two".