20401104044 has 24 divisors (see below), whose sum is σ = 35865706800. Its totient is φ = 10153797120.

The previous prime is 20401104037. The next prime is 20401104071. The reversal of 20401104044 is 44040110402.

It is a happy number.

It is a super-2 number, since 2×20401104044² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4103192 + ... + 4108160.

It is an arithmetic number, because the mean of its divisors is an integer number (1494404450).

Almost surely, 2^20401104044 is an apocalyptic number.

It is an amenable number.

20401104044 is a deficient number, since it is larger than the sum of its proper divisors (15464602756).

20401104044 is a wasteful number, since it uses less digits than its factorization.

20401104044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9473 (or 9471 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20401104044 its reverse (44040110402), we get a palindrome (64441214446).

The spelling of 20401104044 in words is "twenty billion, four hundred one million, one hundred four thousand, forty-four".