100506105550 has 24 divisors (see below), whose sum is σ = 186949893816. Its totient is φ = 40200606240.

The previous prime is 100506105487. The next prime is 100506105559. The reversal of 100506105550 is 55501605001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100506105559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1775484 + ... + 1831216.

It is an arithmetic number, because the mean of its divisors is an integer number (7789578909).

Almost surely, 2^100506105550 is an apocalyptic number.

100506105550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100506105550 is a deficient number, since it is larger than the sum of its proper divisors (86443788266).

100506105550 is a wasteful number, since it uses less digits than its factorization.

100506105550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91812 (or 91807 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 100506105550 in words is "one hundred billion, five hundred six million, one hundred five thousand, five hundred fifty".