1616610415723 has 2 divisors, whose sum is σ = 1616610415724. Its totient is φ = 1616610415722.

The previous prime is 1616610415681. The next prime is 1616610415751. The reversal of 1616610415723 is 3275140166161.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1616610415723 is a prime.

It is a super-2 number, since 2×1616610415723² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1616610415723.

It is not a weakly prime, because it can be changed into another prime (1616610415523) 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, 808305207861 + 808305207862.

It is an arithmetic number, because the mean of its divisors is an integer number (808305207862).

Almost surely, 2^{1616610415723} is an apocalyptic number.

1616610415723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616610415723 is an equidigital number, since it uses as much as digits as its factorization.

1616610415723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 1616610415723 in words is "one trillion, six hundred sixteen billion, six hundred ten million, four hundred fifteen thousand, seven hundred twenty-three".