103820918655 has 16 divisors (see below), whose sum is σ = 173335795200. Its totient is φ = 52963714848.

The previous prime is 103820918651. The next prime is 103820918687. The reversal of 103820918655 is 556819028301.

It is a happy number.

It is not a de Polignac number, because 103820918655 - 2² = 103820918651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103820918651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150464755 + ... + 150465444.

It is an arithmetic number, because the mean of its divisors is an integer number (10833487200).

Almost surely, 2^103820918655 is an apocalyptic number.

103820918655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

103820918655 is a deficient number, since it is larger than the sum of its proper divisors (69514876545).

103820918655 is a wasteful number, since it uses less digits than its factorization.

103820918655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300930230.

The product of its (nonzero) digits is 518400, while the sum is 48.

The spelling of 103820918655 in words is "one hundred three billion, eight hundred twenty million, nine hundred eighteen thousand, six hundred fifty-five".