100215430555 has 32 divisors (see below), whose sum is σ = 127095091200. Its totient is φ = 75649064832.

The previous prime is 100215430543. The next prime is 100215430589. The reversal of 100215430555 is 555034512001.

It is not a de Polignac number, because 100215430555 - 2⁹ = 100215430043 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32546506 + ... + 32549584.

It is an arithmetic number, because the mean of its divisors is an integer number (3971721600).

Almost surely, 2^100215430555 is an apocalyptic number.

100215430555 is a deficient number, since it is larger than the sum of its proper divisors (26879660645).

100215430555 is a wasteful number, since it uses less digits than its factorization.

100215430555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4363.

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 100215430555 its reverse (555034512001), we get a palindrome (655249942556).

The spelling of 100215430555 in words is "one hundred billion, two hundred fifteen million, four hundred thirty thousand, five hundred fifty-five".