21152350410255 has 16 divisors (see below), whose sum is σ = 37604178507360. Its totient is φ = 11281253552064.

The previous prime is 21152350410239. The next prime is 21152350410341. The reversal of 21152350410255 is 55201405325112.

21152350410255 is a `hidden beast` number, since 2 + 1 + 1 + 5 + 235 + 0 + 410 + 2 + 5 + 5 = 666.

It is not a de Polignac number, because 21152350410255 - 2⁴ = 21152350410239 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 78342038422 + ... + 78342038691.

It is an arithmetic number, because the mean of its divisors is an integer number (2350261156710).

Almost surely, 2^{21152350410255} is an apocalyptic number.

21152350410255 is a deficient number, since it is larger than the sum of its proper divisors (16451828097105).

21152350410255 is a wasteful number, since it uses less digits than its factorization.

21152350410255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156684077127 (or 156684077121 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

Adding to 21152350410255 its reverse (55201405325112), we get a palindrome (76353755735367).

The spelling of 21152350410255 in words is "twenty-one trillion, one hundred fifty-two billion, three hundred fifty million, four hundred ten thousand, two hundred fifty-five".