65742167 has 4 divisors (see below), whose sum is σ = 65911560. Its totient is φ = 65572776.

The previous prime is 65742163. The next prime is 65742181. The reversal of 65742167 is 76124756.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65742167 - 2² = 65742163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65742167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65742163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84113 + ... + 84890.

It is an arithmetic number, because the mean of its divisors is an integer number (16477890).

Almost surely, 2^65742167 is an apocalyptic number.

65742167 is a deficient number, since it is larger than the sum of its proper divisors (169393).

65742167 is a wasteful number, since it uses less digits than its factorization.

65742167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169392.

The product of its digits is 70560, while the sum is 38.

The square root of 65742167 is about 8108.1543522555. The cubic root of 65742167 is about 403.5970703330.

It can be divided in two parts, 657 and 42167, that added together give a palindrome (42824).

The spelling of 65742167 in words is "sixty-five million, seven hundred forty-two thousand, one hundred sixty-seven".