42665365061 has 16 divisors (see below), whose sum is σ = 46788876288. Its totient is φ = 38582934000.

The previous prime is 42665365037. The next prime is 42665365073. The reversal of 42665365061 is 16056356624.

It is a cyclic number.

It is not a de Polignac number, because 42665365061 - 2¹⁰ = 42665364037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42665365021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3553310 + ... + 3565296.

It is an arithmetic number, because the mean of its divisors is an integer number (2924304768).

Almost surely, 2^42665365061 is an apocalyptic number.

It is an amenable number.

42665365061 is a deficient number, since it is larger than the sum of its proper divisors (4123511227).

42665365061 is a wasteful number, since it uses less digits than its factorization.

42665365061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13672.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 42665365061 in words is "forty-two billion, six hundred sixty-five million, three hundred sixty-five thousand, sixty-one".