1331426061366 has 32 divisors (see below), whose sum is σ = 2752090810368. Its totient is φ = 428970366720.

The previous prime is 1331426061349. The next prime is 1331426061401. The reversal of 1331426061366 is 6631606241331.

It is a congruent number.

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, 4195771 + ... + 4501926.

It is an arithmetic number, because the mean of its divisors is an integer number (86002837824).

Almost surely, 2^{1331426061366} is an apocalyptic number.

1331426061366 is an abundant number, since it is smaller than the sum of its proper divisors (1420664749002).

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

1331426061366 is a wasteful number, since it uses less digits than its factorization.

1331426061366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8698556.

The product of its (nonzero) digits is 279936, while the sum is 42.

The spelling of 1331426061366 in words is "one trillion, three hundred thirty-one billion, four hundred twenty-six million, sixty-one thousand, three hundred sixty-six".