43645526106 has 128 divisors (see below), whose sum is σ = 109541376000. Its totient is φ = 11287261440.

The previous prime is 43645526083. The next prime is 43645526137. The reversal of 43645526106 is 60162554634.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 6423571 + ... + 6430361.

It is an arithmetic number, because the mean of its divisors is an integer number (855792000).

Almost surely, 2^43645526106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43645526106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54770688000).

43645526106 is an abundant number, since it is smaller than the sum of its proper divisors (65895849894).

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

43645526106 is a wasteful number, since it uses less digits than its factorization.

43645526106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7044.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 43645526106 in words is "forty-three billion, six hundred forty-five million, five hundred twenty-six thousand, one hundred six".