63215152220 has 96 divisors (see below), whose sum is σ = 146733866496. Its totient is φ = 22684217600.

The previous prime is 63215152219. The next prime is 63215152243. The reversal of 63215152220 is 2225151236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23316665 + ... + 23319375.

It is an arithmetic number, because the mean of its divisors is an integer number (1528477776).

Almost surely, 2^63215152220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63215152220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73366933248).

63215152220 is an abundant number, since it is smaller than the sum of its proper divisors (83518714276).

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

63215152220 is a wasteful number, since it uses less digits than its factorization.

63215152220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4091 (or 4089 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 63215152220 in words is "sixty-three billion, two hundred fifteen million, one hundred fifty-two thousand, two hundred twenty".