215968650480 has 360 divisors, whose sum is σ = 810313969920. Its totient is φ = 51496473600.

The previous prime is 215968650467. The next prime is 215968650481. The reversal of 215968650480 is 84056869512.

215968650480 is a `hidden beast` number, since 2 + 1 + 59 + 6 + 8 + 6 + 504 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215968650481) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5294001 + ... + 5334639.

Almost surely, 2^215968650480 is an apocalyptic number.

215968650480 is a gapful number since it is divisible by the number (20) 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 215968650480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405156984960).

215968650480 is an abundant number, since it is smaller than the sum of its proper divisors (594345319440).

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

215968650480 is a wasteful number, since it uses less digits than its factorization.

215968650480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40741 (or 40721 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 215968650480 in words is "two hundred fifteen billion, nine hundred sixty-eight million, six hundred fifty thousand, four hundred eighty".