12662355605 has 8 divisors (see below), whose sum is σ = 15207319512. Its totient is φ = 10121555968.

The previous prime is 12662355551. The next prime is 12662355613. The reversal of 12662355605 is 50655326621.

It can be written as a sum of positive squares in 4 ways, for example, as 930433009 + 11731922596 = 30503^2 + 108314^2 .

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 12662355605 - 2¹⁸ = 12662093461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1034372 + ... + 1046541.

It is an arithmetic number, because the mean of its divisors is an integer number (1900914939).

Almost surely, 2^12662355605 is an apocalyptic number.

It is an amenable number.

12662355605 is a deficient number, since it is larger than the sum of its proper divisors (2544963907).

12662355605 is a wasteful number, since it uses less digits than its factorization.

12662355605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2082135.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 12662355605 in words is "twelve billion, six hundred sixty-two million, three hundred fifty-five thousand, six hundred five".