13155560646 has 8 divisors (see below), whose sum is σ = 26311121304. Its totient is φ = 4385186880.

The previous prime is 13155560633. The next prime is 13155560647. The reversal of 13155560646 is 64606555131.

It is a sphenic number, since it is the product of 3 distinct primes.

13155560646 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 13155560598 and 13155560607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13155560647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1096296715 + ... + 1096296726.

It is an arithmetic number, because the mean of its divisors is an integer number (3288890163).

Almost surely, 2^13155560646 is an apocalyptic number.

13155560646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13155560646 is a wasteful number, since it uses less digits than its factorization.

13155560646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192593446.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 13155560646 in words is "thirteen billion, one hundred fifty-five million, five hundred sixty thousand, six hundred forty-six".