21160444135 has 8 divisors (see below), whose sum is σ = 25625492640. Its totient is φ = 16773048864.

The previous prime is 21160444127. The next prime is 21160444169. The reversal of 21160444135 is 53144406112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21160444135 - 2³ = 21160444127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21160444097 and 21160444106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19412707 + ... + 19413796.

It is an arithmetic number, because the mean of its divisors is an integer number (3203186580).

Almost surely, 2^21160444135 is an apocalyptic number.

21160444135 is a deficient number, since it is larger than the sum of its proper divisors (4465048505).

21160444135 is a wasteful number, since it uses less digits than its factorization.

21160444135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38826617.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 21160444135 in words is "twenty-one billion, one hundred sixty million, four hundred forty-four thousand, one hundred thirty-five".