1601554055671 has 2 divisors, whose sum is σ = 1601554055672. Its totient is φ = 1601554055670.

The previous prime is 1601554055657. The next prime is 1601554055723. The reversal of 1601554055671 is 1765504551061.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1601554055671 - 2¹¹ = 1601554053623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1601554055611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800777027835 + 800777027836.

It is an arithmetic number, because the mean of its divisors is an integer number (800777027836).

Almost surely, 2^{1601554055671} is an apocalyptic number.

1601554055671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601554055671 is an equidigital number, since it uses as much as digits as its factorization.

1601554055671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630000, while the sum is 46.

The spelling of 1601554055671 in words is "one trillion, six hundred one billion, five hundred fifty-four million, fifty-five thousand, six hundred seventy-one".