1601554055611 has 2 divisors, whose sum is σ = 1601554055612. Its totient is φ = 1601554055610.

The previous prime is 1601554055551. The next prime is 1601554055653. The reversal of 1601554055611 is 1165504551061.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1165504551061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1601554055611 - 2⁹ = 1601554055099 is a prime.

It is not a weakly prime, because it can be changed into another prime (1601554055671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800777027805 + 800777027806.

It is an arithmetic number, because the mean of its divisors is an integer number (800777027806).

Almost surely, 2^{1601554055611} is an apocalyptic number.

1601554055611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601554055611 is an equidigital number, since it uses as much as digits as its factorization.

1601554055611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90000, while the sum is 40.

The spelling of 1601554055611 in words is "one trillion, six hundred one billion, five hundred fifty-four million, fifty-five thousand, six hundred eleven".