1066032805 has 16 divisors (see below), whose sum is σ = 1330610688. Its totient is φ = 819000000.

The previous prime is 1066032769. The next prime is 1066032809. The reversal of 1066032805 is 5082306601.

It is not a de Polignac number, because 1066032805 - 2⁹ = 1066032293 is a prime.

It is a super-2 number, since 2×1066032805² = 2272851882672336050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066032809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5946 + ... + 46555.

It is an arithmetic number, because the mean of its divisors is an integer number (83163168).

Almost surely, 2^1066032805 is an apocalyptic number.

It is an amenable number.

1066032805 is a deficient number, since it is larger than the sum of its proper divisors (264577883).

1066032805 is a wasteful number, since it uses less digits than its factorization.

1066032805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52668.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1066032805 is about 32650.1578097258. The cubic root of 1066032805 is about 1021.5434805160.

The spelling of 1066032805 in words is "one billion, sixty-six million, thirty-two thousand, eight hundred five".