8406431066 has 16 divisors (see below), whose sum is σ = 13921715808. Its totient is φ = 3775066800.

The previous prime is 8406431039. The next prime is 8406431087. The reversal of 8406431066 is 6601346048.

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, 2300045 + ... + 2303696.

It is an arithmetic number, because the mean of its divisors is an integer number (870107238).

Almost surely, 2^8406431066 is an apocalyptic number.

8406431066 is a deficient number, since it is larger than the sum of its proper divisors (5515284742).

8406431066 is a wasteful number, since it uses less digits than its factorization.

8406431066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4603837.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 8406431066 is about 91686.5915278783. The cubic root of 8406431066 is about 2033.3113520930.

The spelling of 8406431066 in words is "eight billion, four hundred six million, four hundred thirty-one thousand, sixty-six".