662667241172 has 12 divisors (see below), whose sum is σ = 1159680121236. Its totient is φ = 331330063680.

The previous prime is 662667241157. The next prime is 662667241177. The reversal of 662667241172 is 271142766266.

It can be written as a sum of positive squares in 2 ways, for example, as 452934384016 + 209732857156 = 673004^2 + 457966^2 .

It is a super-2 number, since 2×662667241172² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 662667241172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662667241177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 445433 + ... + 1234400.

It is an arithmetic number, because the mean of its divisors is an integer number (96640010103).

Almost surely, 2^662667241172 is an apocalyptic number.

It is an amenable number.

662667241172 is a deficient number, since it is larger than the sum of its proper divisors (497012880064).

662667241172 is a wasteful number, since it uses less digits than its factorization.

662667241172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778458 (or 1778456 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 50.

The spelling of 662667241172 in words is "six hundred sixty-two billion, six hundred sixty-seven million, two hundred forty-one thousand, one hundred seventy-two".