662528242125 has 24 divisors (see below), whose sum is σ = 1194317579832. Its totient is φ = 353348395200.

The previous prime is 662528242093. The next prime is 662528242141. The reversal of 662528242125 is 521242825266.

662528242125 is a `hidden beast` number, since 6 + 62 + 528 + 2 + 42 + 1 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 211323170601 + 451205071524 = 459699^2 + 671718^2 .

It is not a de Polignac number, because 662528242125 - 2⁵ = 662528242093 is a prime.

It is a super-2 number, since 2×662528242125² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 294455872 + ... + 294458121.

It is an arithmetic number, because the mean of its divisors is an integer number (49763232493).

Almost surely, 2^662528242125 is an apocalyptic number.

It is an amenable number.

662528242125 is a deficient number, since it is larger than the sum of its proper divisors (531789337707).

662528242125 is a wasteful number, since it uses less digits than its factorization.

662528242125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588914014 (or 588914001 counting only the distinct ones).

The product of its digits is 921600, while the sum is 45.

The spelling of 662528242125 in words is "six hundred sixty-two billion, five hundred twenty-eight million, two hundred forty-two thousand, one hundred twenty-five".