40530260066 has 16 divisors (see below), whose sum is σ = 61640485368. Its totient is φ = 19983542400.

The previous prime is 40530260063. The next prime is 40530260087. The reversal of 40530260066 is 66006203504.

40530260066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 38994795841 + 1535464225 = 197471^2 + 39185^2 .

It is not an unprimeable number, because it can be changed into a prime (40530260063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 789956 + ... + 839696.

Almost surely, 2^40530260066 is an apocalyptic number.

40530260066 is a deficient number, since it is larger than the sum of its proper divisors (21110225302).

40530260066 is a wasteful number, since it uses less digits than its factorization.

40530260066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55397.

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 40530260066 in words is "forty billion, five hundred thirty million, two hundred sixty thousand, sixty-six".