1313132013666 has 48 divisors (see below), whose sum is σ = 3134496987648. Its totient is φ = 393978996000.

The previous prime is 1313132013653. The next prime is 1313132013667. The reversal of 1313132013666 is 6663102313131.

It is a self number, because there is not a number n which added to its sum of digits gives 1313132013666.

It is not an unprimeable number, because it can be changed into a prime (1313132013667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32811586 + ... + 32851581.

It is an arithmetic number, because the mean of its divisors is an integer number (65302020576).

Almost surely, 2^{1313132013666} is an apocalyptic number.

1313132013666 is an abundant number, since it is smaller than the sum of its proper divisors (1821364973982).

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

1313132013666 is a wasteful number, since it uses less digits than its factorization.

1313132013666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65663287 (or 65663284 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

Adding to 1313132013666 its reverse (6663102313131), we get a palindrome (7976234326797).

The spelling of 1313132013666 in words is "one trillion, three hundred thirteen billion, one hundred thirty-two million, thirteen thousand, six hundred sixty-six".