13820617355 has 4 divisors (see below), whose sum is σ = 16584740832. Its totient is φ = 11056493880.

The previous prime is 13820617303. The next prime is 13820617519. The reversal of 13820617355 is 55371602831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55371602831 = 103 ⋅537588377.

It is not a de Polignac number, because 13820617355 - 2³² = 9525650059 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1382061731 + ... + 1382061740.

It is an arithmetic number, because the mean of its divisors is an integer number (4146185208).

Almost surely, 2^13820617355 is an apocalyptic number.

13820617355 is a deficient number, since it is larger than the sum of its proper divisors (2764123477).

13820617355 is an equidigital number, since it uses as much as digits as its factorization.

13820617355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764123476.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 13820617355 in words is "thirteen billion, eight hundred twenty million, six hundred seventeen thousand, three hundred fifty-five".