40666711072 has 24 divisors (see below), whose sum is σ = 86221248876. Its totient is φ = 18769251072.

The previous prime is 40666711067. The next prime is 40666711091. The reversal of 40666711072 is 27011766604.

It can be written as a sum of positive squares in 2 ways, for example, as 36632428816 + 4034282256 = 191396^2 + 63516^2 .

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 3 ways as a sum of consecutive naturals, for example, 48877843 + ... + 48878674.

Almost surely, 2^40666711072 is an apocalyptic number.

It is an amenable number.

40666711072 is an abundant number, since it is smaller than the sum of its proper divisors (45554537804).

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

40666711072 is a wasteful number, since it uses less digits than its factorization.

40666711072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97756540 (or 97756532 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 40666711072 in words is "forty billion, six hundred sixty-six million, seven hundred eleven thousand, seventy-two".