616136321503 has 2 divisors, whose sum is σ = 616136321504. Its totient is φ = 616136321502.

The previous prime is 616136321467. The next prime is 616136321557. The reversal of 616136321503 is 305123631616.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 616136321503 - 2⁹ = 616136320991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616136321803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308068160751 + 308068160752.

It is an arithmetic number, because the mean of its divisors is an integer number (308068160752).

Almost surely, 2^616136321503 is an apocalyptic number.

616136321503 is a deficient number, since it is larger than the sum of its proper divisors (1).

616136321503 is an equidigital number, since it uses as much as digits as its factorization.

616136321503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 37.

The spelling of 616136321503 in words is "six hundred sixteen billion, one hundred thirty-six million, three hundred twenty-one thousand, five hundred three".