806665316546 has 16 divisors (see below), whose sum is σ = 1225412323200. Its totient is φ = 398195358288.

The previous prime is 806665316521. The next prime is 806665316549. The reversal of 806665316546 is 645613566608.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 806665316491 and 806665316500.

It is not an unprimeable number, because it can be changed into a prime (806665316549) 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, 1844300 + ... + 2239368.

It is an arithmetic number, because the mean of its divisors is an integer number (76588270200).

Almost surely, 2^806665316546 is an apocalyptic number.

806665316546 is a deficient number, since it is larger than the sum of its proper divisors (418747006654).

806665316546 is a wasteful number, since it uses less digits than its factorization.

806665316546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408073.

The product of its (nonzero) digits is 18662400, while the sum is 56.

It can be divided in two parts, 806665 and 316546, that added together give a palindrome (1123211).

The spelling of 806665316546 in words is "eight hundred six billion, six hundred sixty-five million, three hundred sixteen thousand, five hundred forty-six".