16260542693 has 2 divisors, whose sum is σ = 16260542694. Its totient is φ = 16260542692.

The previous prime is 16260542657. The next prime is 16260542797. The reversal of 16260542693 is 39624506261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14669569924 + 1590972769 = 121118^2 + 39887^2 .

It is a cyclic number.

It is not a de Polignac number, because 16260542693 - 2⁶ = 16260542629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16260542293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8130271346 + 8130271347.

It is an arithmetic number, because the mean of its divisors is an integer number (8130271347).

Almost surely, 2^16260542693 is an apocalyptic number.

It is an amenable number.

16260542693 is a deficient number, since it is larger than the sum of its proper divisors (1).

16260542693 is an equidigital number, since it uses as much as digits as its factorization.

16260542693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 16260542693 in words is "sixteen billion, two hundred sixty million, five hundred forty-two thousand, six hundred ninety-three".