1664230116515 has 8 divisors (see below), whose sum is σ = 1997105395200. Its totient is φ = 1331364589632.

The previous prime is 1664230116413. The next prime is 1664230116569. The reversal of 1664230116515 is 5156110324661.

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 1664230116515 - 2⁴⁰ = 564718488739 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2057090 + ... + 2749559.

It is an arithmetic number, because the mean of its divisors is an integer number (249638174400).

Almost surely, 2^{1664230116515} is an apocalyptic number.

1664230116515 is a deficient number, since it is larger than the sum of its proper divisors (332875278685).

1664230116515 is an equidigital number, since it uses as much as digits as its factorization.

1664230116515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4875901.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 1664230116515 in words is "one trillion, six hundred sixty-four billion, two hundred thirty million, one hundred sixteen thousand, five hundred fifteen".