215353805652 has 48 divisors (see below), whose sum is σ = 558360566400. Its totient is φ = 71779988160.

The previous prime is 215353805651. The next prime is 215353805701. The reversal of 215353805652 is 256508353512.

215353805652 is a `hidden beast` number, since 2 + 1 + 5 + 3 + 5 + 3 + 80 + 565 + 2 = 666.

215353805652 is digitally balanced in base 3 and base 7, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 215353805598 and 215353805607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215353805651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1902049 + ... + 2012087.

It is an arithmetic number, because the mean of its divisors is an integer number (11632511800).

Almost surely, 2^215353805652 is an apocalyptic number.

It is an amenable number.

215353805652 is an abundant number, since it is smaller than the sum of its proper divisors (343006760748).

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

215353805652 is a wasteful number, since it uses less digits than its factorization.

215353805652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128173 (or 128165 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 215353805652 in words is "two hundred fifteen billion, three hundred fifty-three million, eight hundred five thousand, six hundred fifty-two".