215000867466 has 96 divisors (see below), whose sum is σ = 581624649216. Its totient is φ = 55763316000.

The previous prime is 215000867449. The next prime is 215000867537. The reversal of 215000867466 is 664768000512.

215000867466 is a `hidden beast` number, since 2 + 1 + 500 + 0 + 86 + 7 + 4 + 66 = 666.

It is a super-2 number, since 2×215000867466² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 845481 + ... + 1069971.

It is an arithmetic number, because the mean of its divisors is an integer number (6058590096).

Almost surely, 2^215000867466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215000867466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290812324608).

215000867466 is an abundant number, since it is smaller than the sum of its proper divisors (366623781750).

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

215000867466 is a wasteful number, since it uses less digits than its factorization.

215000867466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225208 (or 225205 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

Adding to 215000867466 its reverse (664768000512), we get a palindrome (879768867978).

The spelling of 215000867466 in words is "two hundred fifteen billion, eight hundred sixty-seven thousand, four hundred sixty-six".