13305552641 has 4 divisors (see below), whose sum is σ = 13306296900. Its totient is φ = 13304808384.

The previous prime is 13305552607. The next prime is 13305552653. The reversal of 13305552641 is 14625550331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11286937600 + 2018615041 = 106240^2 + 44929^2 .

It is a cyclic number.

It is not a de Polignac number, because 13305552641 - 2⁶ = 13305552577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13305552661) 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, 344636 + ... + 381293.

It is an arithmetic number, because the mean of its divisors is an integer number (3326574225).

Almost surely, 2^13305552641 is an apocalyptic number.

It is an amenable number.

13305552641 is a deficient number, since it is larger than the sum of its proper divisors (744259).

13305552641 is an equidigital number, since it uses as much as digits as its factorization.

13305552641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744258.

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 13305552641 in words is "thirteen billion, three hundred five million, five hundred fifty-two thousand, six hundred forty-one".