1676615065 has 4 divisors (see below), whose sum is σ = 2011938084. Its totient is φ = 1341292048.

The previous prime is 1676615053. The next prime is 1676615093. The reversal of 1676615065 is 5605166761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5605166761 = 31 ⋅180811831.

It can be written as a sum of positive squares in 2 ways, for example, as 796424841 + 880190224 = 28221^2 + 29668^2 .

It is a cyclic number.

It is not a de Polignac number, because 1676615065 - 2⁵ = 1676615033 is a prime.

It is a super-2 number, since 2×1676615065² = 5622076152369908450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167661502 + ... + 167661511.

It is an arithmetic number, because the mean of its divisors is an integer number (502984521).

Almost surely, 2^1676615065 is an apocalyptic number.

It is an amenable number.

1676615065 is a deficient number, since it is larger than the sum of its proper divisors (335323019).

1676615065 is an equidigital number, since it uses as much as digits as its factorization.

1676615065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335323018.

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

The square root of 1676615065 is about 40946.4902647345. The cubic root of 1676615065 is about 1187.9854493885.

The spelling of 1676615065 in words is "one billion, six hundred seventy-six million, six hundred fifteen thousand, sixty-five".