13361610661 has 8 divisors (see below), whose sum is σ = 15288113664. Its totient is φ = 11439533040.

The previous prime is 13361610641. The next prime is 13361610677. The reversal of 13361610661 is 16601616331.

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

It is a cyclic number.

It is not a de Polignac number, because 13361610661 - 2⁹ = 13361610149 is a prime.

It is a super-2 number, since 2×13361610661² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13361610601) 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, 1099870 + ... + 1111951.

It is an arithmetic number, because the mean of its divisors is an integer number (1911014208).

Almost surely, 2^13361610661 is an apocalyptic number.

It is an amenable number.

13361610661 is a deficient number, since it is larger than the sum of its proper divisors (1926503003).

13361610661 is an equidigital number, since it uses as much as digits as its factorization.

13361610661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212691.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 13361610661 in words is "thirteen billion, three hundred sixty-one million, six hundred ten thousand, six hundred sixty-one".