1610938663 has 2 divisors, whose sum is σ = 1610938664. Its totient is φ = 1610938662.

The previous prime is 1610938639. The next prime is 1610938709. The reversal of 1610938663 is 3668390161.

It is a weak prime.

It is an emirp because it is prime and its reverse (3668390161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1610938663 - 2¹³ = 1610930471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1610933663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805469331 + 805469332.

It is an arithmetic number, because the mean of its divisors is an integer number (805469332).

Almost surely, 2^1610938663 is an apocalyptic number.

1610938663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1610938663 is an equidigital number, since it uses as much as digits as its factorization.

1610938663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 1610938663 is about 40136.5003830678. The cubic root of 1610938663 is about 1172.2664478145.

The spelling of 1610938663 in words is "one billion, six hundred ten million, nine hundred thirty-eight thousand, six hundred sixty-three".