13355150561 has 4 divisors (see below), whose sum is σ = 13357162800. Its totient is φ = 13353138324.

The previous prime is 13355150527. The next prime is 13355150591. The reversal of 13355150561 is 16505155331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13355150561 - 2¹⁰ = 13355149537 is a prime.

It is a super-2 number, since 2×13355150561² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13355150591) 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, 996131 + ... + 1009448.

It is an arithmetic number, because the mean of its divisors is an integer number (3339290700).

Almost surely, 2^13355150561 is an apocalyptic number.

It is an amenable number.

13355150561 is a deficient number, since it is larger than the sum of its proper divisors (2012239).

13355150561 is an equidigital number, since it uses as much as digits as its factorization.

13355150561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012238.

The product of its (nonzero) digits is 33750, while the sum is 35.

The spelling of 13355150561 in words is "thirteen billion, three hundred fifty-five million, one hundred fifty thousand, five hundred sixty-one".