2005947066 has 16 divisors (see below), whose sum is σ = 4019940000. Its totient is φ = 667308048.

The previous prime is 2005947061. The next prime is 2005947133. The reversal of 2005947066 is 6607495002.

It is not an unprimeable number, because it can be changed into a prime (2005947061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332001 + ... + 337988.

It is an arithmetic number, because the mean of its divisors is an integer number (251246250).

Almost surely, 2^2005947066 is an apocalyptic number.

2005947066 is an abundant number, since it is smaller than the sum of its proper divisors (2013992934).

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

2005947066 is a wasteful number, since it uses less digits than its factorization.

2005947066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670493.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 2005947066 is about 44787.8004148451. The cubic root of 2005947066 is about 1261.1686197538.

The spelling of 2005947066 in words is "two billion, five million, nine hundred forty-seven thousand, sixty-six".