20352211321466 has 8 divisors (see below), whose sum is σ = 30751151413140. Its totient is φ = 10101827517088.

The previous prime is 20352211321451. The next prime is 20352211321469. The reversal of 20352211321466 is 66412311225302.

It can be written as a sum of positive squares in 2 ways, for example, as 18169119375625 + 2183091945841 = 4262525^2 + 1477529^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20352211321469) 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, 37139071481 + ... + 37139072028.

Almost surely, 2^{20352211321466} is an apocalyptic number.

20352211321466 is a deficient number, since it is larger than the sum of its proper divisors (10398940091674).

20352211321466 is a wasteful number, since it uses less digits than its factorization.

20352211321466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74278143648.

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 20352211321466 its reverse (66412311225302), we get a palindrome (86764522546768).

The spelling of 20352211321466 in words is "twenty trillion, three hundred fifty-two billion, two hundred eleven million, three hundred twenty-one thousand, four hundred sixty-six".