691680232316 has 12 divisors (see below), whose sum is σ = 1210464420480. Its totient is φ = 345833255040.

The previous prime is 691680232301. The next prime is 691680232333. The reversal of 691680232316 is 613232086196.

It is a super-3 number, since 3×691680232316³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1485020 + ... + 1894371.

It is an arithmetic number, because the mean of its divisors is an integer number (100872035040).

Almost surely, 2^691680232316 is an apocalyptic number.

It is an amenable number.

691680232316 is a deficient number, since it is larger than the sum of its proper divisors (518784188164).

691680232316 is a wasteful number, since it uses less digits than its factorization.

691680232316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3430564 (or 3430562 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 691680232316 in words is "six hundred ninety-one billion, six hundred eighty million, two hundred thirty-two thousand, three hundred sixteen".