1663166341 has 8 divisors (see below), whose sum is σ = 1733957280. Its totient is φ = 1593835152.

The previous prime is 1663166333. The next prime is 1663166359. The reversal of 1663166341 is 1436613661.

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 1663166341 - 2³ = 1663166333 is a prime.

It is a super-2 number, since 2×1663166341² = 5532244555670656562, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1663166341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663166371) 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, 362611 + ... + 367168.

It is an arithmetic number, because the mean of its divisors is an integer number (216744660).

Almost surely, 2^1663166341 is an apocalyptic number.

It is an amenable number.

1663166341 is a deficient number, since it is larger than the sum of its proper divisors (70790939).

1663166341 is an equidigital number, since it uses as much as digits as its factorization.

1663166341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729875.

The product of its digits is 46656, while the sum is 37.

The square root of 1663166341 is about 40781.9364547590. The cubic root of 1663166341 is about 1184.8005007552.

The spelling of 1663166341 in words is "one billion, six hundred sixty-three million, one hundred sixty-six thousand, three hundred forty-one".