2009577066 has 32 divisors (see below), whose sum is σ = 4835074560. Its totient is φ = 543945456.

The previous prime is 2009577061. The next prime is 2009577067. The reversal of 2009577066 is 6607759002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2009577061) 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, 1258336 + ... + 1259931.

It is an arithmetic number, because the mean of its divisors is an integer number (151096080).

Almost surely, 2^2009577066 is an apocalyptic number.

2009577066 is an abundant number, since it is smaller than the sum of its proper divisors (2825497494).

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

2009577066 is a wasteful number, since it uses less digits than its factorization.

2009577066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518298.

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 2009577066 is about 44828.3065261225. The cubic root of 2009577066 is about 1261.9289062433.

The spelling of 2009577066 in words is "two billion, nine million, five hundred seventy-seven thousand, sixty-six".