215304385470720 has 1152 divisors, whose sum is σ = 878011038105600. Its totient is φ = 43740126904320.

The previous prime is 215304385470677. The next prime is 215304385470773. The reversal of 215304385470720 is 27074583403512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2155645422 + ... + 2155745298.

Almost surely, 2^{215304385470720} is an apocalyptic number.

215304385470720 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 215304385470720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (439005519052800).

215304385470720 is an abundant number, since it is smaller than the sum of its proper divisors (662706652634880).

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

215304385470720 is a wasteful number, since it uses less digits than its factorization.

215304385470720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100151 (or 100137 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 51.

The spelling of 215304385470720 in words is "two hundred fifteen trillion, three hundred four billion, three hundred eighty-five million, four hundred seventy thousand, seven hundred twenty".