10545661223144 has 16 divisors (see below), whose sum is σ = 19779354384900. Its totient is φ = 5271166720512.

The previous prime is 10545661223143. The next prime is 10545661223171. The reversal of 10545661223144 is 44132216654501.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10267141160644 + 278520062500 = 3204238^2 + 527750^2 .

It is a super-2 number, since 2×10545661223144² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10545661223095 and 10545661223104.

It is not an unprimeable number, because it can be changed into a prime (10545661223143) 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 3 ways as a sum of consecutive naturals, for example, 207959447 + ... + 208010150.

Almost surely, 2^{10545661223144} is an apocalyptic number.

It is an amenable number.

10545661223144 is a deficient number, since it is larger than the sum of its proper divisors (9233693161756).

10545661223144 is a wasteful number, since it uses less digits than its factorization.

10545661223144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415972772 (or 415972768 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

Adding to 10545661223144 its reverse (44132216654501), we get a palindrome (54677877877645).

The spelling of 10545661223144 in words is "ten trillion, five hundred forty-five billion, six hundred sixty-one million, two hundred twenty-three thousand, one hundred forty-four".