20144513450361 has 32 divisors (see below), whose sum is σ = 29943743990400. Its totient is φ = 11971397652480.

The previous prime is 20144513450357. The next prime is 20144513450371. The reversal of 20144513450361 is 16305431544102.

It is not a de Polignac number, because 20144513450361 - 2² = 20144513450357 is a prime.

It is a super-2 number, since 2×20144513450361² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20144513450351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1161621 + ... + 6452781.

It is an arithmetic number, because the mean of its divisors is an integer number (935741999700).

Almost surely, 2^{20144513450361} is an apocalyptic number.

It is an amenable number.

20144513450361 is a deficient number, since it is larger than the sum of its proper divisors (9799230540039).

20144513450361 is a wasteful number, since it uses less digits than its factorization.

20144513450361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5295129.

The product of its (nonzero) digits is 172800, while the sum is 39.

Adding to 20144513450361 its reverse (16305431544102), we get a palindrome (36449944994463).

The spelling of 20144513450361 in words is "twenty trillion, one hundred forty-four billion, five hundred thirteen million, four hundred fifty thousand, three hundred sixty-one".