665460101066 has 8 divisors (see below), whose sum is σ = 998193824544. Its totient is φ = 332728826220.

The previous prime is 665460101051. The next prime is 665460101071. The reversal of 665460101066 is 660101064566.

665460101066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×665460101066² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405851 + ... + 1222961.

It is an arithmetic number, because the mean of its divisors is an integer number (124774228068).

Almost surely, 2^665460101066 is an apocalyptic number.

665460101066 is a deficient number, since it is larger than the sum of its proper divisors (332733723478).

665460101066 is a wasteful number, since it uses less digits than its factorization.

665460101066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224316.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 665460101066 in words is "six hundred sixty-five billion, four hundred sixty million, one hundred one thousand, sixty-six".