216471478080 has 504 divisors, whose sum is σ = 818115179616. Its totient is φ = 48436776960.

The previous prime is 216471478037. The next prime is 216471478087. The reversal of 216471478080 is 80874174612.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216471478087) 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, 19625527 + ... + 19636553.

It is an arithmetic number, because the mean of its divisors is an integer number (1623244404).

Almost surely, 2^216471478080 is an apocalyptic number.

216471478080 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 216471478080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409057589808).

216471478080 is an abundant number, since it is smaller than the sum of its proper divisors (601643701536).

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

216471478080 is a wasteful number, since it uses less digits than its factorization.

216471478080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11095 (or 11061 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 48.

The spelling of 216471478080 in words is "two hundred sixteen billion, four hundred seventy-one million, four hundred seventy-eight thousand, eighty".