2421808066 has 32 divisors (see below), whose sum is σ = 3887144640. Its totient is φ = 1127671296.

The previous prime is 2421808061. The next prime is 2421808073. The reversal of 2421808066 is 6608081242.

It is not an unprimeable number, because it can be changed into a prime (2421808061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1380646 + ... + 1382398.

It is an arithmetic number, because the mean of its divisors is an integer number (121473270).

Almost surely, 2^2421808066 is an apocalyptic number.

2421808066 is a deficient number, since it is larger than the sum of its proper divisors (1465336574).

2421808066 is a wasteful number, since it uses less digits than its factorization.

2421808066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 2421808066 is about 49211.8691577550. The cubic root of 2421808066 is about 1342.9089670648.

The spelling of 2421808066 in words is "two billion, four hundred twenty-one million, eight hundred eight thousand, sixty-six".