7816918820206 has 16 divisors (see below), whose sum is σ = 11804558014368. Its totient is φ = 3882072852000.

The previous prime is 7816918820201. The next prime is 7816918820237. The reversal of 7816918820206 is 6020288196187.

It is a happy number.

It is a super-2 number, since 2×7816918820206² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7816918820201) 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, 665916 + ... + 4009648.

It is an arithmetic number, because the mean of its divisors is an integer number (737784875898).

Almost surely, 2^{7816918820206} is an apocalyptic number.

7816918820206 is a deficient number, since it is larger than the sum of its proper divisors (3987639194162).

7816918820206 is a wasteful number, since it uses less digits than its factorization.

7816918820206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351627.

The product of its (nonzero) digits is 4644864, while the sum is 58.

The spelling of 7816918820206 in words is "seven trillion, eight hundred sixteen billion, nine hundred eighteen million, eight hundred twenty thousand, two hundred six".