100421180544 has 32 divisors (see below), whose sum is σ = 266743761840. Its totient is φ = 33473726720.

The previous prime is 100421180543. The next prime is 100421180593. The reversal of 100421180544 is 445081124001.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (100421180543) 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, 130756362 + ... + 130757129.

Almost surely, 2^100421180544 is an apocalyptic number.

It is an amenable number.

100421180544 is an abundant number, since it is smaller than the sum of its proper divisors (166322581296).

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

100421180544 is an equidigital number, since it uses as much as digits as its factorization.

100421180544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261513508 (or 261513496 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The spelling of 100421180544 in words is "one hundred billion, four hundred twenty-one million, one hundred eighty thousand, five hundred forty-four".