655710919403 has 2 divisors, whose sum is σ = 655710919404. Its totient is φ = 655710919402.

The previous prime is 655710919363. The next prime is 655710919439. The reversal of 655710919403 is 304919017556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 655710919403 - 2⁸ = 655710919147 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (655710919103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327855459701 + 327855459702.

It is an arithmetic number, because the mean of its divisors is an integer number (327855459702).

Almost surely, 2^655710919403 is an apocalyptic number.

655710919403 is a deficient number, since it is larger than the sum of its proper divisors (1).

655710919403 is an equidigital number, since it uses as much as digits as its factorization.

655710919403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1020600, while the sum is 50.

The spelling of 655710919403 in words is "six hundred fifty-five billion, seven hundred ten million, nine hundred nineteen thousand, four hundred three".