6690958965 has 32 divisors (see below), whose sum is σ = 12521097600. Its totient is φ = 3380693760.

The previous prime is 6690958949. The next prime is 6690958969. The reversal of 6690958965 is 5698590966.

It is not a de Polignac number, because 6690958965 - 2⁴ = 6690958949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6690958969) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1301716 + ... + 1306845.

It is an arithmetic number, because the mean of its divisors is an integer number (391284300).

Almost surely, 2^6690958965 is an apocalyptic number.

It is an amenable number.

6690958965 is a deficient number, since it is larger than the sum of its proper divisors (5830138635).

6690958965 is a wasteful number, since it uses less digits than its factorization.

6690958965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2608594 (or 2608588 counting only the distinct ones).

The product of its (nonzero) digits is 31492800, while the sum is 63.

The square root of 6690958965 is about 81798.2821641139. The cubic root of 6690958965 is about 1884.3552795639.

The spelling of 6690958965 in words is "six billion, six hundred ninety million, nine hundred fifty-eight thousand, nine hundred sixty-five".