43165261125 has 64 divisors (see below), whose sum is σ = 91208931840. Its totient is φ = 19732680000.

The previous prime is 43165261103. The next prime is 43165261147. The reversal of 43165261125 is 52116256134.

43165261125 is a `hidden beast` number, since 4 + 3 + 1 + 6 + 526 + 1 + 125 = 666.

It is an interprime number because it is at equal distance from previous prime (43165261103) and next prime (43165261147).

It is not a de Polignac number, because 43165261125 - 2¹⁰ = 43165260101 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 43165261125.

It is a congruent 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, 889926 + ... + 937175.

It is an arithmetic number, because the mean of its divisors is an integer number (1425139560).

Almost surely, 2^43165261125 is an apocalyptic number.

43165261125 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43165261125 is an abundant number, since it is smaller than the sum of its proper divisors (48043670715).

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

43165261125 is a wasteful number, since it uses less digits than its factorization.

43165261125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827132 (or 1827116 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The spelling of 43165261125 in words is "forty-three billion, one hundred sixty-five million, two hundred sixty-one thousand, one hundred twenty-five".