43243545161566 has 8 divisors (see below), whose sum is σ = 64865346069960. Its totient is φ = 21621763138248.

The previous prime is 43243545161521. The next prime is 43243545161569. The reversal of 43243545161566 is 66516154534234.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43243545161569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5037705 + ... + 10576651.

It is an arithmetic number, because the mean of its divisors is an integer number (8108168258745).

Almost surely, 2^{43243545161566} is an apocalyptic number.

43243545161566 is a deficient number, since it is larger than the sum of its proper divisors (21621800908394).

43243545161566 is a wasteful number, since it uses less digits than its factorization.

43243545161566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9442538.

The product of its digits is 31104000, while the sum is 55.

The spelling of 43243545161566 in words is "forty-three trillion, two hundred forty-three billion, five hundred forty-five million, one hundred sixty-one thousand, five hundred sixty-six".