215652227676 has 72 divisors (see below), whose sum is σ = 528448636800. Its totient is φ = 68318572608.

The previous prime is 215652227633. The next prime is 215652227683. The reversal of 215652227676 is 676722256512.

215652227676 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6787275 + ... + 6818973.

It is an arithmetic number, because the mean of its divisors is an integer number (7339564400).

Almost surely, 2^215652227676 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 215652227676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264224318400).

215652227676 is an abundant number, since it is smaller than the sum of its proper divisors (312796409124).

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

215652227676 is a wasteful number, since it uses less digits than its factorization.

215652227676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32043 (or 31884 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 51.

The spelling of 215652227676 in words is "two hundred fifteen billion, six hundred fifty-two million, two hundred twenty-seven thousand, six hundred seventy-six".