13361152722646 has 16 divisors (see below), whose sum is σ = 20894755734864. Its totient is φ = 6402096870624.

The previous prime is 13361152722637. The next prime is 13361152722649. The reversal of 13361152722646 is 64622725116331.

It is a self number, because there is not a number n which added to its sum of digits gives 13361152722646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13361152722649) 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, 1465676961 + ... + 1465686076.

It is an arithmetic number, because the mean of its divisors is an integer number (1305922233429).

Almost surely, 2^{13361152722646} is an apocalyptic number.

13361152722646 is a deficient number, since it is larger than the sum of its proper divisors (7533603012218).

13361152722646 is a wasteful number, since it uses less digits than its factorization.

13361152722646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931363135.

The product of its digits is 2177280, while the sum is 49.

Adding to 13361152722646 its reverse (64622725116331), we get a palindrome (77983877838977).

The spelling of 13361152722646 in words is "thirteen trillion, three hundred sixty-one billion, one hundred fifty-two million, seven hundred twenty-two thousand, six hundred forty-six".