1672516069 has 12 divisors (see below), whose sum is σ = 1998165324. Its totient is φ = 1394838144.

The previous prime is 1672516019. The next prime is 1672516073. The reversal of 1672516069 is 9606152761.

It can be written as a sum of positive squares in 2 ways, for example, as 931043169 + 741472900 = 30513^2 + 27230^2 .

It is not a de Polignac number, because 1672516069 - 2⁷ = 1672515941 is a prime.

It is a super-2 number, since 2×1672516069² = 5594620002126425522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672516019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 459444 + ... + 463069.

It is an arithmetic number, because the mean of its divisors is an integer number (166513777).

Almost surely, 2^1672516069 is an apocalyptic number.

It is an amenable number.

1672516069 is a deficient number, since it is larger than the sum of its proper divisors (325649255).

1672516069 is an equidigital number, since it uses as much as digits as its factorization.

1672516069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922564 (or 922557 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 1672516069 is about 40896.4065536326. The cubic root of 1672516069 is about 1187.0165286407.

The spelling of 1672516069 in words is "one billion, six hundred seventy-two million, five hundred sixteen thousand, sixty-nine".