665025461473300 has 36 divisors (see below), whose sum is σ = 1482108096037660. Its totient is φ = 258820720139520.

The previous prime is 665025461473291. The next prime is 665025461473301. The reversal of 665025461473300 is 3374164520566.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 20523763059856 + 644501698413444 = 4530316^2 + 25387038^2 .

It is a super-2 number, since 2×665025461473300² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665025461473301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89868301905 + ... + 89868309304.

Almost surely, 2^{665025461473300} is an apocalyptic number.

It is an amenable number.

665025461473300 is an abundant number, since it is smaller than the sum of its proper divisors (817082634564360).

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

665025461473300 is a wasteful number, since it uses less digits than its factorization.

665025461473300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179736611260 (or 179736611253 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 52.

The spelling of 665025461473300 in words is "six hundred sixty-five trillion, twenty-five billion, four hundred sixty-one million, four hundred seventy-three thousand, three hundred".