1616355145001 has 2 divisors, whose sum is σ = 1616355145002. Its totient is φ = 1616355145000.

The previous prime is 1616355144977. The next prime is 1616355145007. The reversal of 1616355145001 is 1005415536161.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1480356456601 + 135998688400 = 1216699^2 + 368780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1616355145001 is a prime.

It is a super-2 number, since 2×1616355145001² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1616355145007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808177572500 + 808177572501.

It is an arithmetic number, because the mean of its divisors is an integer number (808177572501).

Almost surely, 2^{1616355145001} is an apocalyptic number.

It is an amenable number.

1616355145001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616355145001 is an equidigital number, since it uses as much as digits as its factorization.

1616355145001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 1616355145001 in words is "one trillion, six hundred sixteen billion, three hundred fifty-five million, one hundred forty-five thousand, one".