42660556305 has 8 divisors (see below), whose sum is σ = 68256890112. Its totient is φ = 22752296688.

The previous prime is 42660556283. The next prime is 42660556327. The reversal of 42660556305 is 50365506624.

42660556305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42660556283) and next prime (42660556327).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42660556305 - 2⁵ = 42660556273 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1422018529 + ... + 1422018558.

It is an arithmetic number, because the mean of its divisors is an integer number (8532111264).

Almost surely, 2^42660556305 is an apocalyptic number.

It is an amenable number.

42660556305 is a deficient number, since it is larger than the sum of its proper divisors (25596333807).

42660556305 is a wasteful number, since it uses less digits than its factorization.

42660556305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844037095.

The product of its (nonzero) digits is 648000, while the sum is 42.

It can be divided in two parts, 42660 and 556305, that added together give a triangular number (598965 = T₁₀₉₄).

The spelling of 42660556305 in words is "forty-two billion, six hundred sixty million, five hundred fifty-six thousand, three hundred five".