100440451066 has 32 divisors (see below), whose sum is σ = 153542854800. Its totient is φ = 49269496320.

The previous prime is 100440451061. The next prime is 100440451073. The reversal of 100440451066 is 660154044001.

It can be written as a sum of positive squares in 8 ways, for example, as 77403586225 + 23036864841 = 278215^2 + 151779^2 .

It is not an unprimeable number, because it can be changed into a prime (100440451061) 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, 16656540 + ... + 16662568.

Almost surely, 2^100440451066 is an apocalyptic number.

100440451066 is a deficient number, since it is larger than the sum of its proper divisors (53102403734).

100440451066 is a wasteful number, since it uses less digits than its factorization.

100440451066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6834.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 100440451066 its reverse (660154044001), we get a palindrome (760594495067).

The spelling of 100440451066 in words is "one hundred billion, four hundred forty million, four hundred fifty-one thousand, sixty-six".