1306123435066 has 32 divisors (see below), whose sum is σ = 2084900727312. Its totient is φ = 611550643200.

The previous prime is 1306123435013. The next prime is 1306123435073. The reversal of 1306123435066 is 6605343216031.

It can be written as a sum of positive squares in 8 ways, for example, as 711119471841 + 595003963225 = 843279^2 + 771365^2 .

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 15 ways as a sum of consecutive naturals, for example, 6503100 + ... + 6700936.

Almost surely, 2^{1306123435066} is an apocalyptic number.

1306123435066 is a deficient number, since it is larger than the sum of its proper divisors (778777292246).

1306123435066 is a wasteful number, since it uses less digits than its factorization.

1306123435066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198834.

The product of its (nonzero) digits is 233280, while the sum is 40.

The spelling of 1306123435066 in words is "one trillion, three hundred six billion, one hundred twenty-three million, four hundred thirty-five thousand, sixty-six".