100506105555555 has 64 divisors (see below), whose sum is σ = 185604974438400. Its totient is φ = 45490672465920.

The previous prime is 100506105555539. The next prime is 100506105555563. The reversal of 100506105555555 is 555555501605001.

It is not a de Polignac number, because 100506105555555 - 2⁴ = 100506105555539 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12350466 + ... + 18802824.

It is an arithmetic number, because the mean of its divisors is an integer number (2900077725600).

Almost surely, 2^{100506105555555} is an apocalyptic number.

100506105555555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100506105555555 is a deficient number, since it is larger than the sum of its proper divisors (85098868882845).

100506105555555 is a wasteful number, since it uses less digits than its factorization.

100506105555555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6453844.

The product of its (nonzero) digits is 2343750, while the sum is 48.

The spelling of 100506105555555 in words is "one hundred trillion, five hundred six billion, one hundred five million, five hundred fifty-five thousand, five hundred fifty-five".