1650607661005 has 8 divisors (see below), whose sum is σ = 2034262414872. Its totient is φ = 1284797314368.

The previous prime is 1650607660997. The next prime is 1650607661023. The reversal of 1650607661005 is 5001667060561.

It can be written as a sum of positive squares in 4 ways, for example, as 282898461924 + 1367709199081 = 531882^2 + 1169491^2 .

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 1650607661005 - 2³ = 1650607660997 is a prime.

It is a super-2 number, since 2×1650607661005² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

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, 4461101602 + ... + 4461101971.

It is an arithmetic number, because the mean of its divisors is an integer number (254282801859).

Almost surely, 2^{1650607661005} is an apocalyptic number.

It is an amenable number.

1650607661005 is a deficient number, since it is larger than the sum of its proper divisors (383654753867).

1650607661005 is an equidigital number, since it uses as much as digits as its factorization.

1650607661005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8922203615.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 1650607661005 in words is "one trillion, six hundred fifty billion, six hundred seven million, six hundred sixty-one thousand, five".