1466720818 has 16 divisors (see below), whose sum is σ = 2235466296. Its totient is φ = 721612800.

The previous prime is 1466720803. The next prime is 1466720819. The reversal of 1466720818 is 8180276641.

It can be written as a sum of positive squares in 4 ways, for example, as 1321831449 + 144889369 = 36357^2 + 12037^2 .

It is not an unprimeable number, because it can be changed into a prime (1466720819) 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, 51618 + ... + 74818.

Almost surely, 2^1466720818 is an apocalyptic number.

1466720818 is a deficient number, since it is larger than the sum of its proper divisors (768745478).

1466720818 is a wasteful number, since it uses less digits than its factorization.

1466720818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23709.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 1466720818 is about 38297.7912940159. The cubic root of 1466720818 is about 1136.1852633981.

The spelling of 1466720818 in words is "one billion, four hundred sixty-six million, seven hundred twenty thousand, eight hundred eighteen".