20204441466 has 32 divisors (see below), whose sum is σ = 44399577600. Its totient is φ = 6078508080.

The previous prime is 20204441461. The next prime is 20204441473. The reversal of 20204441466 is 66414440202.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (20204441461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1092006 + ... + 1110353.

It is an arithmetic number, because the mean of its divisors is an integer number (1387486800).

Almost surely, 2^20204441466 is an apocalyptic number.

20204441466 is an abundant number, since it is smaller than the sum of its proper divisors (24195136134).

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

20204441466 is a wasteful number, since it uses less digits than its factorization.

20204441466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202514.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 20204441466 its reverse (66414440202), we get a palindrome (86618881668).

The spelling of 20204441466 in words is "twenty billion, two hundred four million, four hundred forty-one thousand, four hundred sixty-six".