17220172052 has 12 divisors (see below), whose sum is σ = 30142145376. Its totient is φ = 8608130520.

The previous prime is 17220172037. The next prime is 17220172061. The reversal of 17220172052 is 25027102271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468974 + ... + 504357.

It is an arithmetic number, because the mean of its divisors is an integer number (2511845448).

Almost surely, 2^17220172052 is an apocalyptic number.

It is an amenable number.

17220172052 is a deficient number, since it is larger than the sum of its proper divisors (12921973324).

17220172052 is a wasteful number, since it uses less digits than its factorization.

17220172052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977758 (or 977756 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 29.

The spelling of 17220172052 in words is "seventeen billion, two hundred twenty million, one hundred seventy-two thousand, fifty-two".