6690629696 has 28 divisors (see below), whose sum is σ = 13279415148. Its totient is φ = 3344635392.

The previous prime is 6690629651. The next prime is 6690629707. The reversal of 6690629696 is 6969260966.

It can be written as a sum of positive squares in 2 ways, for example, as 5069440000 + 1621189696 = 71200^2 + 40264^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489710 + ... + 503186.

Almost surely, 2^6690629696 is an apocalyptic number.

It is an amenable number.

6690629696 is a deficient number, since it is larger than the sum of its proper divisors (6588785452).

6690629696 is a wasteful number, since it uses less digits than its factorization.

6690629696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21246 (or 21236 counting only the distinct ones).

The product of its (nonzero) digits is 11337408, while the sum is 59.

The square root of 6690629696 is about 81796.2694503851. The cubic root of 6690629696 is about 1884.3243687005.

The spelling of 6690629696 in words is "six billion, six hundred ninety million, six hundred twenty-nine thousand, six hundred ninety-six".