100860205944 has 128 divisors (see below), whose sum is σ = 272439936000. Its totient is φ = 31047657984.

The previous prime is 100860205931. The next prime is 100860205993. The reversal of 100860205944 is 449502068001.

It is a super-3 number, since 3×100860205944³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

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, 1486177 + ... + 1552559.

It is an arithmetic number, because the mean of its divisors is an integer number (2128437000).

Almost surely, 2^100860205944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100860205944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136219968000).

100860205944 is an abundant number, since it is smaller than the sum of its proper divisors (171579730056).

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

100860205944 is a wasteful number, since it uses less digits than its factorization.

100860205944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66517 (or 66513 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 100860205944 in words is "one hundred billion, eight hundred sixty million, two hundred five thousand, nine hundred forty-four".