66476883 has 16 divisors (see below), whose sum is σ = 97554816. Its totient is φ = 39930240.

The previous prime is 66476873. The next prime is 66476897. The reversal of 66476883 is 38867466.

It is a happy number.

It is not a de Polignac number, because 66476883 - 2¹⁸ = 66214739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66476833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5185 + ... + 12642.

It is an arithmetic number, because the mean of its divisors is an integer number (6097176).

Almost surely, 2^66476883 is an apocalyptic number.

66476883 is a deficient number, since it is larger than the sum of its proper divisors (31077933).

66476883 is a wasteful number, since it uses less digits than its factorization.

66476883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17954.

The product of its digits is 1161216, while the sum is 48.

The square root of 66476883 is about 8153.3356977375. The cubic root of 66476883 is about 405.0949998147.

It can be divided in two parts, 6647 and 6883, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 66476883 in words is "sixty-six million, four hundred seventy-six thousand, eight hundred eighty-three".