669200421503 has 2 divisors, whose sum is σ = 669200421504. Its totient is φ = 669200421502.

The previous prime is 669200421481. The next prime is 669200421583. The reversal of 669200421503 is 305124002966.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 669200421503 - 2²⁴ = 669183644287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (669200421583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334600210751 + 334600210752.

It is an arithmetic number, because the mean of its divisors is an integer number (334600210752).

Almost surely, 2^669200421503 is an apocalyptic number.

669200421503 is a deficient number, since it is larger than the sum of its proper divisors (1).

669200421503 is an equidigital number, since it uses as much as digits as its factorization.

669200421503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 669200421503 in words is "six hundred sixty-nine billion, two hundred million, four hundred twenty-one thousand, five hundred three".