6660511065465 has 16 divisors (see below), whose sum is σ = 10662507454848. Its totient is φ = 3550375984896.

The previous prime is 6660511065407. The next prime is 6660511065473. The reversal of 6660511065465 is 5645601150666.

It is not a de Polignac number, because 6660511065465 - 2¹⁹ = 6660510541177 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118507429 + ... + 118563618.

It is an arithmetic number, because the mean of its divisors is an integer number (666406715928).

Almost surely, 2^{6660511065465} is an apocalyptic number.

It is an amenable number.

6660511065465 is a deficient number, since it is larger than the sum of its proper divisors (4001996389383).

6660511065465 is a wasteful number, since it uses less digits than its factorization.

6660511065465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237072928.

The product of its (nonzero) digits is 3888000, while the sum is 51.

The spelling of 6660511065465 in words is "six trillion, six hundred sixty billion, five hundred eleven million, sixty-five thousand, four hundred sixty-five".