662225645 has 8 divisors (see below), whose sum is σ = 814053240. Its totient is φ = 516858880.

The previous prime is 662225623. The next prime is 662225647. The reversal of 662225645 is 546522266.

It can be written as a sum of positive squares in 4 ways, for example, as 4251844 + 657973801 = 2062^2 + 25651^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 662225645 - 2⁶ = 662225581 is a prime.

It is a super-3 number, since 3×662225645³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 662225599 and 662225608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662225647) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1614980 + ... + 1615389.

It is an arithmetic number, because the mean of its divisors is an integer number (101756655).

Almost surely, 2^662225645 is an apocalyptic number.

It is an amenable number.

662225645 is a deficient number, since it is larger than the sum of its proper divisors (151827595).

662225645 is a wasteful number, since it uses less digits than its factorization.

662225645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3230415.

The product of its digits is 172800, while the sum is 38.

The square root of 662225645 is about 25733.7452579293. The cubic root of 662225645 is about 871.6363465031.

The spelling of 662225645 in words is "six hundred sixty-two million, two hundred twenty-five thousand, six hundred forty-five".