103806530505 has 40 divisors (see below), whose sum is σ = 186471648000. Its totient is φ = 55247798304.

The previous prime is 103806530501. The next prime is 103806530549. The reversal of 103806530505 is 505035608301.

103806530505 is a `hidden beast` number, since 10 + 3 + 80 + 65 + 3 + 0 + 505 = 666.

It is not a de Polignac number, because 103806530505 - 2² = 103806530501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103806530505.

It is not an unprimeable number, because it can be changed into a prime (103806530501) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 73555 + ... + 461544.

It is an arithmetic number, because the mean of its divisors is an integer number (4661791200).

Almost surely, 2^103806530505 is an apocalyptic number.

103806530505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103806530505 is a deficient number, since it is larger than the sum of its proper divisors (82665117495).

103806530505 is an equidigital number, since it uses as much as digits as its factorization.

103806530505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535595 (or 535586 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 103806530505 in words is "one hundred three billion, eight hundred six million, five hundred thirty thousand, five hundred five".