2006666670 has 16 divisors (see below), whose sum is σ = 4816000080. Its totient is φ = 535111104.

The previous prime is 2006666639. The next prime is 2006666693. The reversal of 2006666670 is 766666002.

It is a super-2 number, since 2×2006666670² = 8053422248977777800, which contains 22 as substring.

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, 33444415 + ... + 33444474.

It is an arithmetic number, because the mean of its divisors is an integer number (301000005).

Almost surely, 2^2006666670 is an apocalyptic number.

2006666670 is an abundant number, since it is smaller than the sum of its proper divisors (2809333410).

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

2006666670 is a wasteful number, since it uses less digits than its factorization.

2006666670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66888899.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 2006666670 is about 44795.8331767588. The cubic root of 2006666670 is about 1261.3194102869.

It can be divided in two parts, 20066 and 66670, that added together give a triangular number (86736 = T₄₁₆).

The spelling of 2006666670 in words is "two billion, six million, six hundred sixty-six thousand, six hundred seventy".