2006064681 has 16 divisors (see below), whose sum is σ = 2788606656. Its totient is φ = 1281623616.

The previous prime is 2006064679. The next prime is 2006064713. The reversal of 2006064681 is 1864606002.

It is a happy number.

It is not a de Polignac number, because 2006064681 - 2¹ = 2006064679 is a prime.

It is a super-2 number, since 2×2006064681² = 8048591008711263522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2006064661) 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, 139870 + ... + 153543.

It is an arithmetic number, because the mean of its divisors is an integer number (174287916).

Almost surely, 2^2006064681 is an apocalyptic number.

It is an amenable number.

2006064681 is a deficient number, since it is larger than the sum of its proper divisors (782541975).

2006064681 is a wasteful number, since it uses less digits than its factorization.

2006064681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293512.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 2006064681 is about 44789.1134205624. The cubic root of 2006064681 is about 1261.1932680360.

The spelling of 2006064681 in words is "two billion, six million, sixty-four thousand, six hundred eighty-one".