1665230026465 has 8 divisors (see below), whose sum is σ = 2040792543360. Its totient is φ = 1303839680112.

The previous prime is 1665230026451. The next prime is 1665230026469. The reversal of 1665230026465 is 5646200325661.

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

It is a cyclic number.

It is not a de Polignac number, because 1665230026465 - 2⁷ = 1665230026337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1665230026469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3543042375 + ... + 3543042844.

It is an arithmetic number, because the mean of its divisors is an integer number (255099067920).

Almost surely, 2^{1665230026465} is an apocalyptic number.

It is an amenable number.

1665230026465 is a deficient number, since it is larger than the sum of its proper divisors (375562516895).

1665230026465 is an equidigital number, since it uses as much as digits as its factorization.

1665230026465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7086085271.

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 1665230026465 in words is "one trillion, six hundred sixty-five billion, two hundred thirty million, twenty-six thousand, four hundred sixty-five".