353217168666 has 20 divisors (see below), whose sum is σ = 791468100522. Its totient is φ = 117739056168.

The previous prime is 353217168569. The next prime is 353217168697. The reversal of 353217168666 is 666861712353.

It can be written as a sum of positive squares in only one way, i.e., 336928007025 + 16289161641 = 580455^2 + 127629^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

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 9 ways as a sum of consecutive naturals, for example, 1090176285 + ... + 1090176608.

Almost surely, 2^353217168666 is an apocalyptic number.

353217168666 is an abundant number, since it is smaller than the sum of its proper divisors (438250931856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

353217168666 is a wasteful number, since it uses less digits than its factorization.

353217168666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180352907 (or 2180352898 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 353217168666 in words is "three hundred fifty-three billion, two hundred seventeen million, one hundred sixty-eight thousand, six hundred sixty-six".