100556213156 has 24 divisors (see below), whose sum is σ = 203867395200. Its totient is φ = 42505169472.

The previous prime is 100556213143. The next prime is 100556213189. The reversal of 100556213156 is 651312655001.

It is a super-2 number, since 2×100556213156² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24595856 + ... + 24599943.

It is an arithmetic number, because the mean of its divisors is an integer number (8494474800).

Almost surely, 2^100556213156 is an apocalyptic number.

It is an amenable number.

100556213156 is an abundant number, since it is smaller than the sum of its proper divisors (103311182044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100556213156 is a wasteful number, since it uses less digits than its factorization.

100556213156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49195883 (or 49195881 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

Adding to 100556213156 its reverse (651312655001), we get a palindrome (751868868157).

The spelling of 100556213156 in words is "one hundred billion, five hundred fifty-six million, two hundred thirteen thousand, one hundred fifty-six".