13355201646 has 32 divisors (see below), whose sum is σ = 29805628320. Its totient is φ = 4432623552.

The previous prime is 13355201609. The next prime is 13355201659. The reversal of 13355201646 is 64610255331.

13355201646 is a `hidden beast` number, since 1 + 3 + 3 + 5 + 5 + 2 + 0 + 1 + 646 = 666.

It is a super-2 number, since 2×13355201646² (a number of 21 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 13355201646.

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, 518145 + ... + 543308.

It is an arithmetic number, because the mean of its divisors is an integer number (931425885).

Almost surely, 2^13355201646 is an apocalyptic number.

13355201646 is an abundant number, since it is smaller than the sum of its proper divisors (16450426674).

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

13355201646 is a wasteful number, since it uses less digits than its factorization.

13355201646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061697 (or 1061691 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

Adding to 13355201646 its reverse (64610255331), we get a palindrome (77965456977).

The spelling of 13355201646 in words is "thirteen billion, three hundred fifty-five million, two hundred one thousand, six hundred forty-six".