66483730 has 16 divisors (see below), whose sum is σ = 121929624. Its totient is φ = 26091520.

The previous prime is 66483721. The next prime is 66483733. The reversal of 66483730 is 3738466.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 48734361 + 17749369 = 6981^2 + 4213^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66483730.

It is not an unprimeable number, because it can be changed into a prime (66483733) 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, 62191 + ... + 63250.

Almost surely, 2^66483730 is an apocalyptic number.

66483730 is a deficient number, since it is larger than the sum of its proper divisors (55445894).

66483730 is a wasteful number, since it uses less digits than its factorization.

66483730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125501.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 66483730 is about 8153.7555764200. The cubic root of 66483730 is about 405.1089073573.

The spelling of 66483730 in words is "sixty-six million, four hundred eighty-three thousand, seven hundred thirty".