1669134305 has 8 divisors (see below), whose sum is σ = 2003909544. Its totient is φ = 1334675200.

The previous prime is 1669134301. The next prime is 1669134319. The reversal of 1669134305 is 5034319661.

It can be written as a sum of positive squares in 4 ways, for example, as 503867809 + 1165266496 = 22447^2 + 34136^2 .

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

It is not a de Polignac number, because 1669134305 - 2² = 1669134301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1669134301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67256 + ... + 88665.

It is an arithmetic number, because the mean of its divisors is an integer number (250488693).

Almost surely, 2^1669134305 is an apocalyptic number.

It is an amenable number.

1669134305 is a deficient number, since it is larger than the sum of its proper divisors (334775239).

1669134305 is a wasteful number, since it uses less digits than its factorization.

1669134305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158067.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 1669134305 is about 40855.0401419458. The cubic root of 1669134305 is about 1186.2159547014.

The spelling of 1669134305 in words is "one billion, six hundred sixty-nine million, one hundred thirty-four thousand, three hundred five".