43061601105 has 24 divisors (see below), whose sum is σ = 77404559232. Its totient is φ = 22966186608.

The previous prime is 43061601101. The next prime is 43061601151. The reversal of 43061601105 is 50110616034.

43061601105 is a `hidden beast` number, since 4 + 30 + 616 + 0 + 1 + 10 + 5 = 666.

It is not a de Polignac number, because 43061601105 - 2² = 43061601101 is a prime.

It is a super-2 number, since 2×43061601105² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (43061601101) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 17719609 + ... + 17722038.

It is an arithmetic number, because the mean of its divisors is an integer number (3225189968).

Almost surely, 2^43061601105 is an apocalyptic number.

43061601105 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43061601105 is a deficient number, since it is larger than the sum of its proper divisors (34342958127).

43061601105 is an equidigital number, since it uses as much as digits as its factorization.

43061601105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35441667 (or 35441655 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 43061601105 in words is "forty-three billion, sixty-one million, six hundred one thousand, one hundred five".