1336813811446 has 16 divisors (see below), whose sum is σ = 2025710232480. Its totient is φ = 661589752320.

The previous prime is 1336813811441. The next prime is 1336813811447. The reversal of 1336813811446 is 6441183186331.

It is a happy number.

It is a super-2 number, since 2×1336813811446² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1336813811446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1336813811441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2959915 + ... + 3381526.

It is an arithmetic number, because the mean of its divisors is an integer number (126606889530).

Almost surely, 2^{1336813811446} is an apocalyptic number.

1336813811446 is a deficient number, since it is larger than the sum of its proper divisors (688896421034).

1336813811446 is a wasteful number, since it uses less digits than its factorization.

1336813811446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6342519.

The product of its digits is 995328, while the sum is 49.

Adding to 1336813811446 its reverse (6441183186331), we get a palindrome (7777996997777).

The spelling of 1336813811446 in words is "one trillion, three hundred thirty-six billion, eight hundred thirteen million, eight hundred eleven thousand, four hundred forty-six".