13066978196779 has 8 divisors (see below), whose sum is σ = 14250258599360. Its totient is φ = 11909144684736.

The previous prime is 13066978196747. The next prime is 13066978196873. The reversal of 13066978196779 is 97769187966031.

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

It is not a de Polignac number, because 13066978196779 - 2⁵ = 13066978196747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (79).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13066978196699 and 13066978196708.

It is not an unprimeable number, because it can be changed into a prime (13066978196179) 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, 6361721562 + ... + 6361723615.

It is an arithmetic number, because the mean of its divisors is an integer number (1781282324920).

Almost surely, 2^{13066978196779} is an apocalyptic number.

13066978196779 is a deficient number, since it is larger than the sum of its proper divisors (1183280402581).

13066978196779 is a wasteful number, since it uses less digits than its factorization.

13066978196779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12723445269.

The product of its (nonzero) digits is 1296243648, while the sum is 79.

The spelling of 13066978196779 in words is "thirteen trillion, sixty-six billion, nine hundred seventy-eight million, one hundred ninety-six thousand, seven hundred seventy-nine".