1566683345 has 8 divisors (see below), whose sum is σ = 1911885120. Its totient is φ = 1232103280.

The previous prime is 1566683333. The next prime is 1566683347. The reversal of 1566683345 is 5433866651.

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

It is not a de Polignac number, because 1566683345 - 2⁶ = 1566683281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1566683345.

It is not an unprimeable number, because it can be changed into a prime (1566683347) 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, 2655101 + ... + 2655690.

It is an arithmetic number, because the mean of its divisors is an integer number (238985640).

Almost surely, 2^1566683345 is an apocalyptic number.

It is an amenable number.

1566683345 is a deficient number, since it is larger than the sum of its proper divisors (345201775).

1566683345 is an equidigital number, since it uses as much as digits as its factorization.

1566683345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5310855.

The product of its digits is 1555200, while the sum is 47.

The square root of 1566683345 is about 39581.3509749225. The cubic root of 1566683345 is about 1161.4318784938.

The spelling of 1566683345 in words is "one billion, five hundred sixty-six million, six hundred eighty-three thousand, three hundred forty-five".