806151666 has 16 divisors (see below), whose sum is σ = 1612721088. Its totient is φ = 268647600.

The previous prime is 806151653. The next prime is 806151667. The reversal of 806151666 is 666151608.

It is a super-3 number, since 3×806151666³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (806151667) 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, 11331 + ... + 41721.

It is an arithmetic number, because the mean of its divisors is an integer number (100795068).

Almost surely, 2^806151666 is an apocalyptic number.

806151666 is an abundant number, since it is smaller than the sum of its proper divisors (806569422).

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

806151666 is a wasteful number, since it uses less digits than its factorization.

806151666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34817.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 806151666 is about 28392.8101110123. The cubic root of 806151666 is about 930.6911523145.

The spelling of 806151666 in words is "eight hundred six million, one hundred fifty-one thousand, six hundred sixty-six".