108403743555 has 16 divisors (see below), whose sum is σ = 192717766560. Its totient is φ = 57815329824.

The previous prime is 108403743541. The next prime is 108403743587. The reversal of 108403743555 is 555347304801.

It is a happy number.

108403743555 is a `hidden beast` number, since 10 + 8 + 40 + 3 + 7 + 43 + 555 = 666.

It is not a de Polignac number, because 108403743555 - 2¹⁵ = 108403710787 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 108403743555.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401495212 + ... + 401495481.

It is an arithmetic number, because the mean of its divisors is an integer number (12044860410).

Almost surely, 2^108403743555 is an apocalyptic number.

108403743555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

108403743555 is a deficient number, since it is larger than the sum of its proper divisors (84314023005).

108403743555 is an equidigital number, since it uses as much as digits as its factorization.

108403743555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802990707 (or 802990701 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The spelling of 108403743555 in words is "one hundred eight billion, four hundred three million, seven hundred forty-three thousand, five hundred fifty-five".