100556143436 has 24 divisors (see below), whose sum is σ = 201301896096. Its totient is φ = 43054859520.

The previous prime is 100556143433. The next prime is 100556143447. The reversal of 100556143436 is 634341655001.

It is a super-2 number, since 2×100556143436² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100556143436.

It is not an unprimeable number, because it can be changed into a prime (100556143433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1662701 + ... + 1722116.

It is an arithmetic number, because the mean of its divisors is an integer number (8387579004).

Almost surely, 2^100556143436 is an apocalyptic number.

It is an amenable number.

100556143436 is an abundant number, since it is smaller than the sum of its proper divisors (100745752660).

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

100556143436 is a wasteful number, since it uses less digits than its factorization.

100556143436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3385889 (or 3385887 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 100556143436 its reverse (634341655001), we get a palindrome (734897798437).

The spelling of 100556143436 in words is "one hundred billion, five hundred fifty-six million, one hundred forty-three thousand, four hundred thirty-six".