63316620 has 96 divisors (see below), whose sum is σ = 202372800. Its totient is φ = 16422912.

The previous prime is 63316579. The next prime is 63316651. The reversal of 63316620 is 2661336.

63316620 is a `hidden beast` number, since 6 + 3 + 31 + 6 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18396 + ... + 21564.

It is an arithmetic number, because the mean of its divisors is an integer number (2108050).

Almost surely, 2^63316620 is an apocalyptic number.

63316620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63316620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101186400).

63316620 is an abundant number, since it is smaller than the sum of its proper divisors (139056180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63316620 is a wasteful number, since it uses less digits than its factorization.

63316620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224 (or 3216 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 63316620 is about 7957.1741215082. The cubic root of 63316620 is about 398.5711940272.

Adding to 63316620 its reverse (2661336), we get a palindrome (65977956).

It can be divided in two parts, 63316 and 620, that added together give a palindrome (63936).

The spelling of 63316620 in words is "sixty-three million, three hundred sixteen thousand, six hundred twenty".