63216006 has 64 divisors (see below), whose sum is σ = 155713536. Its totient is φ = 16711200.

The previous prime is 63215989. The next prime is 63216007. The reversal of 63216006 is 60061236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63216007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28891 + ... + 31001.

It is an arithmetic number, because the mean of its divisors is an integer number (2433024).

Almost surely, 2^63216006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63216006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77856768).

63216006 is an abundant number, since it is smaller than the sum of its proper divisors (92497530).

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

63216006 is a wasteful number, since it uses less digits than its factorization.

63216006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2177.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 63216006 is about 7950.8493885874. The cubic root of 63216006 is about 398.3599640620.

The spelling of 63216006 in words is "sixty-three million, two hundred sixteen thousand, six".