100455044420 has 48 divisors (see below), whose sum is σ = 226055950848. Its totient is φ = 37362716160.

The previous prime is 100455044413. The next prime is 100455044423. The reversal of 100455044420 is 24440554001.

It is not an unprimeable number, because it can be changed into a prime (100455044423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1751636 + ... + 1808075.

It is an arithmetic number, because the mean of its divisors is an integer number (4709498976).

Almost surely, 2^100455044420 is an apocalyptic number.

100455044420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100455044420 is an abundant number, since it is smaller than the sum of its proper divisors (125600906428).

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

100455044420 is a wasteful number, since it uses less digits than its factorization.

100455044420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3559820 (or 3559818 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 100455044420 its reverse (24440554001), we get a palindrome (124895598421).

The spelling of 100455044420 in words is "one hundred billion, four hundred fifty-five million, forty-four thousand, four hundred twenty".