6690804503 has 2 divisors, whose sum is σ = 6690804504. Its totient is φ = 6690804502.

The previous prime is 6690804499. The next prime is 6690804511. The reversal of 6690804503 is 3054080966.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6690804503 - 2² = 6690804499 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6690804103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3345402251 + 3345402252.

It is an arithmetic number, because the mean of its divisors is an integer number (3345402252).

Almost surely, 2^6690804503 is an apocalyptic number.

6690804503 is a deficient number, since it is larger than the sum of its proper divisors (1).

6690804503 is an equidigital number, since it uses as much as digits as its factorization.

6690804503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 6690804503 is about 81797.3379945827. The cubic root of 6690804503 is about 1884.3407792247.

The spelling of 6690804503 in words is "six billion, six hundred ninety million, eight hundred four thousand, five hundred three".