662570216212 has 6 divisors (see below), whose sum is σ = 1159497878378. Its totient is φ = 331285108104.

The previous prime is 662570216173. The next prime is 662570216279. The reversal of 662570216212 is 212612075266.

It can be written as a sum of positive squares in only one way, i.e., 597164199696 + 65406016516 = 772764^2 + 255746^2 .

It is a super-3 number, since 3×662570216212³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82821277023 + ... + 82821277030.

Almost surely, 2^662570216212 is an apocalyptic number.

It is an amenable number.

662570216212 is a deficient number, since it is larger than the sum of its proper divisors (496927662166).

662570216212 is a wasteful number, since it uses less digits than its factorization.

662570216212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165642554057 (or 165642554055 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 662570216212 in words is "six hundred sixty-two billion, five hundred seventy million, two hundred sixteen thousand, two hundred twelve".