21136016295 has 12 divisors (see below), whose sum is σ = 36635761656. Its totient is φ = 11272542000.

The previous prime is 21136016249. The next prime is 21136016323. The reversal of 21136016295 is 59261063112.

21136016295 is a `hidden beast` number, since 2 + 1 + 1 + 360 + 1 + 6 + 295 = 666.

It is not a de Polignac number, because 21136016295 - 2¹⁵ = 21135983527 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 (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234844581 + ... + 234844670.

It is an arithmetic number, because the mean of its divisors is an integer number (3052980138).

Almost surely, 2^21136016295 is an apocalyptic number.

21136016295 is a deficient number, since it is larger than the sum of its proper divisors (15499745361).

21136016295 is a wasteful number, since it uses less digits than its factorization.

21136016295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469689262 (or 469689259 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 21136016295 in words is "twenty-one billion, one hundred thirty-six million, sixteen thousand, two hundred ninety-five".