1609961160403 has 2 divisors, whose sum is σ = 1609961160404. Its totient is φ = 1609961160402.

The previous prime is 1609961160397. The next prime is 1609961160439. The reversal of 1609961160403 is 3040611699061.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1609961160403 - 2²⁹ = 1609424289491 is a prime.

It is not a weakly prime, because it can be changed into another prime (1609961160103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804980580201 + 804980580202.

It is an arithmetic number, because the mean of its divisors is an integer number (804980580202).

Almost surely, 2^{1609961160403} is an apocalyptic number.

1609961160403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1609961160403 is an equidigital number, since it uses as much as digits as its factorization.

1609961160403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 46.

The spelling of 1609961160403 in words is "one trillion, six hundred nine billion, nine hundred sixty-one million, one hundred sixty thousand, four hundred three".