43022156641 has 4 divisors (see below), whose sum is σ = 43044415252. Its totient is φ = 42999898032.

The previous prime is 43022156621. The next prime is 43022156657. The reversal of 43022156641 is 14665122034.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31935119616 + 11087037025 = 178704^2 + 105295^2 .

It is a cyclic number.

It is not a de Polignac number, because 43022156641 - 2³⁵ = 8662418273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43022156597 and 43022156606.

It is not an unprimeable number, because it can be changed into a prime (43022156621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11126406 + ... + 11130271.

It is an arithmetic number, because the mean of its divisors is an integer number (10761103813).

Almost surely, 2^43022156641 is an apocalyptic number.

It is an amenable number.

43022156641 is a deficient number, since it is larger than the sum of its proper divisors (22258611).

43022156641 is a wasteful number, since it uses less digits than its factorization.

43022156641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22258610.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 43022156641 its reverse (14665122034), we get a palindrome (57687278675).

The spelling of 43022156641 in words is "forty-three billion, twenty-two million, one hundred fifty-six thousand, six hundred forty-one".