1366305012 has 18 divisors (see below), whose sum is σ = 3453715538. Its totient is φ = 455434992.

The previous prime is 1366305007. The next prime is 1366305013. The reversal of 1366305012 is 2105036631.

1366305012 is a `hidden beast` number, since 13 + 6 + 630 + 5 + 0 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1191906576 + 174398436 = 34524^2 + 13206^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366305013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18976423 + ... + 18976494.

Almost surely, 2^1366305012 is an apocalyptic number.

1366305012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1366305012 is an abundant number, since it is smaller than the sum of its proper divisors (2087410526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1366305012 is a wasteful number, since it uses less digits than its factorization.

1366305012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37952927 (or 37952922 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 1366305012 is about 36963.5633022575. The cubic root of 1366305012 is about 1109.6411501316.

The spelling of 1366305012 in words is "one billion, three hundred sixty-six million, three hundred five thousand, twelve".