665460101067 has 16 divisors (see below), whose sum is σ = 895645745280. Its totient is φ = 439457940992.

The previous prime is 665460101051. The next prime is 665460101071. The reversal of 665460101067 is 760101064566.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 665460101067 - 2⁴ = 665460101051 is a prime.

It is a super-2 number, since 2×665460101067² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (665460101027) 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, 4177963 + ... + 4334315.

It is an arithmetic number, because the mean of its divisors is an integer number (55977859080).

Almost surely, 2^665460101067 is an apocalyptic number.

665460101067 is a deficient number, since it is larger than the sum of its proper divisors (230185644213).

665460101067 is a wasteful number, since it uses less digits than its factorization.

665460101067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169722.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 665460101067 in words is "six hundred sixty-five billion, four hundred sixty million, one hundred one thousand, sixty-seven".