1366626705642 has 48 divisors (see below), whose sum is σ = 3231930398112. Its totient is φ = 413908558560.

The previous prime is 1366626705623. The next prime is 1366626705761. The reversal of 1366626705642 is 2465076266631.

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 23 ways as a sum of consecutive naturals, for example, 1466968 + ... + 2210259.

It is an arithmetic number, because the mean of its divisors is an integer number (67331883294).

Almost surely, 2^{1366626705642} is an apocalyptic number.

1366626705642 is an abundant number, since it is smaller than the sum of its proper divisors (1865303692470).

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

1366626705642 is a wasteful number, since it uses less digits than its factorization.

1366626705642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679123 (or 3679120 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 54.

The spelling of 1366626705642 in words is "one trillion, three hundred sixty-six billion, six hundred twenty-six million, seven hundred five thousand, six hundred forty-two".