13599105778 has 16 divisors (see below), whose sum is σ = 21108329280. Its totient is φ = 6563135376.

The previous prime is 13599105743. The next prime is 13599105781. The reversal of 13599105778 is 87750199531.

13599105778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13599105778² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172675 + ... + 238777.

It is an arithmetic number, because the mean of its divisors is an integer number (1319270580).

Almost surely, 2^13599105778 is an apocalyptic number.

13599105778 is a deficient number, since it is larger than the sum of its proper divisors (7509223502).

13599105778 is a wasteful number, since it uses less digits than its factorization.

13599105778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69681.

The product of its (nonzero) digits is 2381400, while the sum is 55.

The spelling of 13599105778 in words is "thirteen billion, five hundred ninety-nine million, one hundred five thousand, seven hundred seventy-eight".