1066023801 has 16 divisors (see below), whose sum is σ = 1602868800. Its totient is φ = 700074144.

The previous prime is 1066023787. The next prime is 1066023809. The reversal of 1066023801 is 1083206601.

It is not a de Polignac number, because 1066023801 - 2¹⁰ = 1066022777 is a prime.

It is a super-2 number, since 2×1066023801² = 2272813488596975202, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1066023809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292836 + ... + 296453.

It is an arithmetic number, because the mean of its divisors is an integer number (100179300).

Almost surely, 2^1066023801 is an apocalyptic number.

It is an amenable number.

1066023801 is a deficient number, since it is larger than the sum of its proper divisors (536844999).

1066023801 is an equidigital number, since it uses as much as digits as its factorization.

1066023801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589365 (or 589359 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1066023801 is about 32650.0199234242. The cubic root of 1066023801 is about 1021.5406044309.

The spelling of 1066023801 in words is "one billion, sixty-six million, twenty-three thousand, eight hundred one".