1616601011629 has 2 divisors, whose sum is σ = 1616601011630. Its totient is φ = 1616601011628.

The previous prime is 1616601011617. The next prime is 1616601011653. The reversal of 1616601011629 is 9261101066161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1605263660100 + 11337351529 = 1266990^2 + 106477^2 .

It is a cyclic number.

It is not a de Polignac number, because 1616601011629 - 2¹¹ = 1616601009581 is a prime.

It is a super-2 number, since 2×1616601011629² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1616601011591 and 1616601011600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1616601081629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808300505814 + 808300505815.

It is an arithmetic number, because the mean of its divisors is an integer number (808300505815).

Almost surely, 2^{1616601011629} is an apocalyptic number.

It is an amenable number.

1616601011629 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616601011629 is an equidigital number, since it uses as much as digits as its factorization.

1616601011629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 40.

The spelling of 1616601011629 in words is "one trillion, six hundred sixteen billion, six hundred one million, eleven thousand, six hundred twenty-nine".