66331485 has 48 divisors (see below), whose sum is σ = 126741888. Its totient is φ = 31824000.

The previous prime is 66331483. The next prime is 66331511. The reversal of 66331485 is 58413366.

66331485 is a `hidden beast` number, since 6 + 633 + 14 + 8 + 5 = 666.

It is not a de Polignac number, because 66331485 - 2¹ = 66331483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66331483) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50335 + ... + 51635.

It is an arithmetic number, because the mean of its divisors is an integer number (2640456).

Almost surely, 2^66331485 is an apocalyptic number.

It is an amenable number.

66331485 is a deficient number, since it is larger than the sum of its proper divisors (60410403).

66331485 is a wasteful number, since it uses less digits than its factorization.

66331485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426 (or 1423 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 66331485 is about 8144.4143435854. The cubic root of 66331485 is about 404.7994434532.

It can be divided in two parts, 6633 and 1485, that added together give a palindrome (8118).

The spelling of 66331485 in words is "sixty-six million, three hundred thirty-one thousand, four hundred eighty-five".