12210605666355 has 16 divisors (see below), whose sum is σ = 19575352121760. Its totient is φ = 6499528670208.

The previous prime is 12210605666341. The next prime is 12210605666381. The reversal of 12210605666355 is 55366650601221.

It is not a de Polignac number, because 12210605666355 - 2⁸ = 12210605666099 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 799639102 + ... + 799654371.

It is an arithmetic number, because the mean of its divisors is an integer number (1223459507610).

Almost surely, 2^{12210605666355} is an apocalyptic number.

12210605666355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12210605666355 is a deficient number, since it is larger than the sum of its proper divisors (7364746455405).

12210605666355 is a wasteful number, since it uses less digits than its factorization.

12210605666355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599293990.

The product of its (nonzero) digits is 1944000, while the sum is 48.

The spelling of 12210605666355 in words is "twelve trillion, two hundred ten billion, six hundred five million, six hundred sixty-six thousand, three hundred fifty-five".