100603306644 has 96 divisors (see below), whose sum is σ = 251165376000. Its totient is φ = 31250468736.

The previous prime is 100603306597. The next prime is 100603306703. The reversal of 100603306644 is 446603306001.

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, 3439867 + ... + 3468989.

It is an arithmetic number, because the mean of its divisors is an integer number (2616306000).

Almost surely, 2^100603306644 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 100603306644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125582688000).

100603306644 is an abundant number, since it is smaller than the sum of its proper divisors (150562069356).

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

100603306644 is a wasteful number, since it uses less digits than its factorization.

100603306644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29397 (or 29395 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

The spelling of 100603306644 in words is "one hundred billion, six hundred three million, three hundred six thousand, six hundred forty-four".