662773145 has 8 divisors (see below), whose sum is σ = 800394504. Its totient is φ = 526840704.

The previous prime is 662773099. The next prime is 662773157. The reversal of 662773145 is 541377266.

It can be written as a sum of positive squares in 4 ways, for example, as 4748041 + 658025104 = 2179^2 + 25652^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 662773145 - 2⁶ = 662773081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421364 + ... + 422933.

It is an arithmetic number, because the mean of its divisors is an integer number (100049313).

Almost surely, 2^662773145 is an apocalyptic number.

It is an amenable number.

662773145 is a deficient number, since it is larger than the sum of its proper divisors (137621359).

662773145 is a wasteful number, since it uses less digits than its factorization.

662773145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844459.

The product of its digits is 211680, while the sum is 41.

The square root of 662773145 is about 25744.3808432054. The cubic root of 662773145 is about 871.8764909555.

The spelling of 662773145 in words is "six hundred sixty-two million, seven hundred seventy-three thousand, one hundred forty-five".