66471363 has 24 divisors (see below), whose sum is σ = 110073600. Its totient is φ = 37864944.

The previous prime is 66471337. The next prime is 66471371. The reversal of 66471363 is 36317466.

It is a happy number.

66471363 is a `hidden beast` number, since 6 + 647 + 1 + 3 + 6 + 3 = 666.

It is not a de Polignac number, because 66471363 - 2⁵ = 66471331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66471763) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21148 + ... + 24086.

It is an arithmetic number, because the mean of its divisors is an integer number (4586400).

Almost surely, 2^66471363 is an apocalyptic number.

66471363 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

66471363 is a deficient number, since it is larger than the sum of its proper divisors (43602237).

66471363 is a wasteful number, since it uses less digits than its factorization.

66471363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3311 (or 3308 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 66471363 is about 8152.9971789520. The cubic root of 66471363 is about 405.0837869630.

It can be divided in two parts, 664 and 71363, that added together give a palindrome (72027).

The spelling of 66471363 in words is "sixty-six million, four hundred seventy-one thousand, three hundred sixty-three".