43012222146544 has 80 divisors (see below), whose sum is σ = 95907640536000. Its totient is φ = 18304919764992.

The previous prime is 43012222146503. The next prime is 43012222146557. The reversal of 43012222146544 is 44564122221034.

43012222146544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×43012222146544² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43012222146497 and 43012222146506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58996912 + ... + 59721520.

It is an arithmetic number, because the mean of its divisors is an integer number (1198845506700).

Almost surely, 2^{43012222146544} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43012222146544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47953820268000).

43012222146544 is an abundant number, since it is smaller than the sum of its proper divisors (52895418389456).

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

43012222146544 is a wasteful number, since it uses less digits than its factorization.

43012222146544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728330 (or 728324 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 40.

Adding to 43012222146544 its reverse (44564122221034), we get a palindrome (87576344367578).

The spelling of 43012222146544 in words is "forty-three trillion, twelve billion, two hundred twenty-two million, one hundred forty-six thousand, five hundred forty-four".