1005145566 has 16 divisors (see below), whose sum is σ = 2010902544. Its totient is φ = 334946624.

The previous prime is 1005145549. The next prime is 1005145579. The reversal of 1005145566 is 6655415001.

It is a Curzon number.

It is a congruent 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, 2511 + ... + 44906.

It is an arithmetic number, because the mean of its divisors is an integer number (125681409).

Almost surely, 2^1005145566 is an apocalyptic number.

1005145566 is an abundant number, since it is smaller than the sum of its proper divisors (1005756978).

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

1005145566 is a wasteful number, since it uses less digits than its factorization.

1005145566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50955.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 1005145566 is about 31704.0307532023. The cubic root of 1005145566 is about 1001.7122551755.

The spelling of 1005145566 in words is "one billion, five million, one hundred forty-five thousand, five hundred sixty-six".