17215224961 has 16 divisors (see below), whose sum is σ = 18943759296. Its totient is φ = 15514200000.

The previous prime is 17215224937. The next prime is 17215224991. The reversal of 17215224961 is 16942251271.

It is a cyclic number.

It is not a de Polignac number, because 17215224961 - 2²⁷ = 17081007233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (17215224991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1465411 + ... + 1477111.

It is an arithmetic number, because the mean of its divisors is an integer number (1183984956).

Almost surely, 2^17215224961 is an apocalyptic number.

17215224961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

17215224961 is a deficient number, since it is larger than the sum of its proper divisors (1728534335).

17215224961 is a wasteful number, since it uses less digits than its factorization.

17215224961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12864.

The product of its digits is 60480, while the sum is 40.

The spelling of 17215224961 in words is "seventeen billion, two hundred fifteen million, two hundred twenty-four thousand, nine hundred sixty-one".