42505514066 has 16 divisors (see below), whose sum is σ = 64837373208. Its totient is φ = 20893420800.

The previous prime is 42505514057. The next prime is 42505514071. The reversal of 42505514066 is 66041550524.

It can be written as a sum of positive squares in 4 ways, for example, as 15331640041 + 27173874025 = 123821^2 + 164845^2 .

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 7 ways as a sum of consecutive naturals, for example, 145706 + ... + 325946.

Almost surely, 2^42505514066 is an apocalyptic number.

42505514066 is a deficient number, since it is larger than the sum of its proper divisors (22331859142).

42505514066 is a wasteful number, since it uses less digits than its factorization.

42505514066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182237.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 42505514066 in words is "forty-two billion, five hundred five million, five hundred fourteen thousand, sixty-six".