43225551645 has 16 divisors (see below), whose sum is σ = 69601401600. Its totient is φ = 22906787904.

The previous prime is 43225551643. The next prime is 43225551647. The reversal of 43225551645 is 54615552234.

It is an interprime number because it is at equal distance from previous prime (43225551643) and next prime (43225551647).

It is not a de Polignac number, because 43225551645 - 2¹ = 43225551643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43225551597 and 43225551606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43225551643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9175045 + ... + 9179754.

It is an arithmetic number, because the mean of its divisors is an integer number (4350087600).

Almost surely, 2^43225551645 is an apocalyptic number.

It is an amenable number.

43225551645 is a deficient number, since it is larger than the sum of its proper divisors (26375849955).

43225551645 is a wasteful number, since it uses less digits than its factorization.

43225551645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18354964.

The product of its digits is 720000, while the sum is 42.

The spelling of 43225551645 in words is "forty-three billion, two hundred twenty-five million, five hundred fifty-one thousand, six hundred forty-five".