1001602566 has 24 divisors (see below), whose sum is σ = 2297794824. Its totient is φ = 314228160.

The previous prime is 1001602541. The next prime is 1001602573. The reversal of 1001602566 is 6652061001.

It is a happy number.

1001602566 is a `hidden beast` number, since 1 + 0 + 0 + 1 + 602 + 56 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1636300 + ... + 1636911.

It is an arithmetic number, because the mean of its divisors is an integer number (95741451).

Almost surely, 2^1001602566 is an apocalyptic number.

1001602566 is an abundant number, since it is smaller than the sum of its proper divisors (1296192258).

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

1001602566 is a wasteful number, since it uses less digits than its factorization.

1001602566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3273236 (or 3273233 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1001602566 is about 31648.1052513417. The cubic root of 1001602566 is about 1000.5339035629.

Adding to 1001602566 its reverse (6652061001), we get a palindrome (7653663567).

The spelling of 1001602566 in words is "one billion, one million, six hundred two thousand, five hundred sixty-six".