42566540260240 has 40 divisors (see below), whose sum is σ = 98975594640888. Its totient is φ = 17025172915200.

The previous prime is 42566540260187. The next prime is 42566540260261. The reversal of 42566540260240 is 4206204566524.

42566540260240 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 12326615421184 + 30239924839056 = 3510928^2 + 5499084^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21599847 + ... + 23488006.

Almost surely, 2^{42566540260240} is an apocalyptic number.

42566540260240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42566540260240 is an abundant number, since it is smaller than the sum of its proper divisors (56409054380648).

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

42566540260240 is a wasteful number, since it uses less digits than its factorization.

42566540260240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45099667 (or 45099661 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 46.

The spelling of 42566540260240 in words is "forty-two trillion, five hundred sixty-six billion, five hundred forty million, two hundred sixty thousand, two hundred forty".