696666696 has 128 divisors (see below), whose sum is σ = 1942669440. Its totient is φ = 208158720.

The previous prime is 696666683. The next prime is 696666703.

696666696 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3609576 + ... + 3609768.

It is an arithmetic number, because the mean of its divisors is an integer number (15177105).

Almost surely, 2^696666696 is an apocalyptic number.

696666696 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 696666696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (971334720).

696666696 is an abundant number, since it is smaller than the sum of its proper divisors (1246002744).

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

696666696 is a wasteful number, since it uses less digits than its factorization.

696666696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 322 counting only the distinct ones).

The product of its digits is 22674816, while the sum is 60.

The square root of 696666696 is about 26394.4444154447. Note that the first 4 decimals coincide. The cubic root of 696666696 is about 886.4923997187.

The spelling of 696666696 in words is "six hundred ninety-six million, six hundred sixty-six thousand, six hundred ninety-six".