42207240554561 has 16 divisors (see below), whose sum is σ = 43220193086400. Its totient is φ = 41195721631680.

The previous prime is 42207240554513. The next prime is 42207240554603. The reversal of 42207240554561 is 16545504270224.

It is a cyclic number.

It is not a de Polignac number, because 42207240554561 - 2⁶ = 42207240554497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42207240554161) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 588292151 + ... + 588363891.

It is an arithmetic number, because the mean of its divisors is an integer number (2701262067900).

Almost surely, 2^{42207240554561} is an apocalyptic number.

It is an amenable number.

42207240554561 is a deficient number, since it is larger than the sum of its proper divisors (1012952531839).

42207240554561 is a wasteful number, since it uses less digits than its factorization.

42207240554561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81536.

The product of its (nonzero) digits is 2688000, while the sum is 47.

The spelling of 42207240554561 in words is "forty-two trillion, two hundred seven billion, two hundred forty million, five hundred fifty-four thousand, five hundred sixty-one".