2166603473 has 8 divisors (see below), whose sum is σ = 2261901696. Its totient is φ = 2071396800.

The previous prime is 2166603463. The next prime is 2166603533. The reversal of 2166603473 is 3743066612.

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 2166603473 - 2⁴ = 2166603457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2166603433) 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, 27908 + ... + 71498.

It is an arithmetic number, because the mean of its divisors is an integer number (282737712).

Almost surely, 2^2166603473 is an apocalyptic number.

2166603473 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2166603473 is a deficient number, since it is larger than the sum of its proper divisors (95298223).

2166603473 is a wasteful number, since it uses less digits than its factorization.

2166603473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45775.

The product of its (nonzero) digits is 108864, while the sum is 38.

The square root of 2166603473 is about 46546.7879987438. The cubic root of 2166603473 is about 1293.9767656899.

The spelling of 2166603473 in words is "two billion, one hundred sixty-six million, six hundred three thousand, four hundred seventy-three".