42600661165 has 16 divisors (see below), whose sum is σ = 54370649088. Its totient is φ = 31931940096.

The previous prime is 42600661163. The next prime is 42600661171. The reversal of 42600661165 is 56116600624.

It is a cyclic number.

It is not a de Polignac number, because 42600661165 - 2¹ = 42600661163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42600661163) 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, 1104777 + ... + 1142686.

It is an arithmetic number, because the mean of its divisors is an integer number (3398165568).

Almost surely, 2^42600661165 is an apocalyptic number.

It is an amenable number.

42600661165 is a deficient number, since it is larger than the sum of its proper divisors (11769987923).

42600661165 is a wasteful number, since it uses less digits than its factorization.

42600661165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247708.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 42600661165 in words is "forty-two billion, six hundred million, six hundred sixty-one thousand, one hundred sixty-five".