1665316351045 has 8 divisors (see below), whose sum is σ = 1998388516896. Its totient is φ = 1332247150416.

The previous prime is 1665316350941. The next prime is 1665316351063. The reversal of 1665316351045 is 5401536135661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1665316351045 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1665316350986 and 1665316351004.

It is a congruent number.

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, 776934 + ... + 1983496.

It is an arithmetic number, because the mean of its divisors is an integer number (249798564612).

Almost surely, 2^{1665316351045} is an apocalyptic number.

It is an amenable number.

1665316351045 is a deficient number, since it is larger than the sum of its proper divisors (333072165851).

1665316351045 is a wasteful number, since it uses less digits than its factorization.

1665316351045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482611.

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 1665316351045 in words is "one trillion, six hundred sixty-five billion, three hundred sixteen million, three hundred fifty-one thousand, forty-five".