100425564636 has 12 divisors (see below), whose sum is σ = 234326317512. Its totient is φ = 33475188208.

The previous prime is 100425564619. The next prime is 100425564637. The reversal of 100425564636 is 636465524001.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100425564637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4184398515 + ... + 4184398538.

It is an arithmetic number, because the mean of its divisors is an integer number (19527193126).

Almost surely, 2^100425564636 is an apocalyptic number.

It is an amenable number.

100425564636 is an abundant number, since it is smaller than the sum of its proper divisors (133900752876).

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

100425564636 is a wasteful number, since it uses less digits than its factorization.

100425564636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8368797060 (or 8368797058 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 100425564636 in words is "one hundred billion, four hundred twenty-five million, five hundred sixty-four thousand, six hundred thirty-six".