1066501550 has 24 divisors (see below), whose sum is σ = 1999324416. Its totient is φ = 423239040.

The previous prime is 1066501549. The next prime is 1066501567. The reversal of 1066501550 is 551056601.

It is a super-2 number, since 2×1066501550² = 2274851112304805000, which contains 22 as substring.

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, 77627 + ... + 90326.

It is an arithmetic number, because the mean of its divisors is an integer number (83305184).

Almost surely, 2^1066501550 is an apocalyptic number.

1066501550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1066501550 is a deficient number, since it is larger than the sum of its proper divisors (932822866).

1066501550 is a wasteful number, since it uses less digits than its factorization.

1066501550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168092 (or 168087 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 1066501550 is about 32657.3353168932. The cubic root of 1066501550 is about 1021.6931861129.

The spelling of 1066501550 in words is "one billion, sixty-six million, five hundred one thousand, five hundred fifty".