13066208661 has 8 divisors (see below), whose sum is σ = 19005394464. Its totient is φ = 7918914320.

The previous prime is 13066208657. The next prime is 13066208671. The reversal of 13066208661 is 16680266031.

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 13066208661 - 2² = 13066208657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13066208611) 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, 197972826 + ... + 197972891.

It is an arithmetic number, because the mean of its divisors is an integer number (2375674308).

Almost surely, 2^13066208661 is an apocalyptic number.

13066208661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13066208661 is a deficient number, since it is larger than the sum of its proper divisors (5939185803).

13066208661 is a wasteful number, since it uses less digits than its factorization.

13066208661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395945731.

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 13066208661 in words is "thirteen billion, sixty-six million, two hundred eight thousand, six hundred sixty-one".