66667336 has 16 divisors (see below), whose sum is σ = 132354540. Its totient is φ = 31372800.

The previous prime is 66667331. The next prime is 66667339. The reversal of 66667336 is 63376666.

66667336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 52272900 + 14394436 = 7230^2 + 3794^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66667292 and 66667301.

It is not an unprimeable number, because it can be changed into a prime (66667331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244965 + ... + 245236.

Almost surely, 2^66667336 is an apocalyptic number.

It is an amenable number.

66667336 is a deficient number, since it is larger than the sum of its proper divisors (65687204).

66667336 is a wasteful number, since it uses less digits than its factorization.

66667336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490224 (or 490220 counting only the distinct ones).

The product of its digits is 489888, while the sum is 43.

The square root of 66667336 is about 8165.0067973027. The cubic root of 66667336 is about 405.4814900405.

The spelling of 66667336 in words is "sixty-six million, six hundred sixty-seven thousand, three hundred thirty-six".