13266634420616 has 8 divisors (see below), whose sum is σ = 24874939538670. Its totient is φ = 6633317210304.

The previous prime is 13266634420583. The next prime is 13266634420631. The reversal of 13266634420616 is 61602443666231.

It can be written as a sum of positive squares in only one way, i.e., 12776978760100 + 489655660516 = 3574490^2 + 699754^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 829164651281 + ... + 829164651296.

Almost surely, 2^{13266634420616} is an apocalyptic number.

It is an amenable number.

13266634420616 is a deficient number, since it is larger than the sum of its proper divisors (11608305118054).

13266634420616 is a wasteful number, since it uses less digits than its factorization.

13266634420616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658329302583 (or 1658329302579 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 50.

The spelling of 13266634420616 in words is "thirteen trillion, two hundred sixty-six billion, six hundred thirty-four million, four hundred twenty thousand, six hundred sixteen".