63106320 has 80 divisors (see below), whose sum is σ = 202397760. Its totient is φ = 16246272.

The previous prime is 63106301. The next prime is 63106321. The reversal of 63106320 is 2360136.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (63106321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2427 + ... + 11493.

It is an arithmetic number, because the mean of its divisors is an integer number (2529972).

Almost surely, 2^63106320 is an apocalyptic number.

63106320 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 63106320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101198880).

63106320 is an abundant number, since it is smaller than the sum of its proper divisors (139291440).

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

63106320 is a wasteful number, since it uses less digits than its factorization.

63106320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9112 (or 9106 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 63106320 is about 7943.9486403174. The cubic root of 63106320 is about 398.1294327478.

Adding to 63106320 its reverse (2360136), we get a palindrome (65466456).

The spelling of 63106320 in words is "sixty-three million, one hundred six thousand, three hundred twenty".