17220143983 has 8 divisors (see below), whose sum is σ = 19695301920. Its totient is φ = 14748770400.

The previous prime is 17220143957. The next prime is 17220143987. The reversal of 17220143983 is 38934102271.

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

It is not a de Polignac number, because 17220143983 - 2²⁹ = 16683273071 is a prime.

It is a super-2 number, since 2×17220143983² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17220143987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936328 + ... + 954541.

It is an arithmetic number, because the mean of its divisors is an integer number (2461912740).

Almost surely, 2^17220143983 is an apocalyptic number.

17220143983 is a deficient number, since it is larger than the sum of its proper divisors (2475157937).

17220143983 is a wasteful number, since it uses less digits than its factorization.

17220143983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892177.

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 17220143983 in words is "seventeen billion, two hundred twenty million, one hundred forty-three thousand, nine hundred eighty-three".