17020420524255 has 32 divisors (see below), whose sum is σ = 27359561735424. Its totient is φ = 9035315388416.

The previous prime is 17020420524227. The next prime is 17020420524319. The reversal of 17020420524255 is 55242502402071.

It is a cyclic number.

It is not a de Polignac number, because 17020420524255 - 2¹⁰ = 17020420523231 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3349444 + ... + 6727526.

It is an arithmetic number, because the mean of its divisors is an integer number (854986304232).

Almost surely, 2^{17020420524255} is an apocalyptic number.

17020420524255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

17020420524255 is a deficient number, since it is larger than the sum of its proper divisors (10339141211169).

17020420524255 is a wasteful number, since it uses less digits than its factorization.

17020420524255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3379655.

The product of its (nonzero) digits is 224000, while the sum is 39.

The spelling of 17020420524255 in words is "seventeen trillion, twenty billion, four hundred twenty million, five hundred twenty-four thousand, two hundred fifty-five".