16839642101 has 2 divisors, whose sum is σ = 16839642102. Its totient is φ = 16839642100.

The previous prime is 16839642067. The next prime is 16839642121. The reversal of 16839642101 is 10124693861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10120561201 + 6719080900 = 100601^2 + 81970^2 .

It is a cyclic number.

It is not a de Polignac number, because 16839642101 - 2¹⁸ = 16839379957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16839642121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8419821050 + 8419821051.

It is an arithmetic number, because the mean of its divisors is an integer number (8419821051).

Almost surely, 2^16839642101 is an apocalyptic number.

It is an amenable number.

16839642101 is a deficient number, since it is larger than the sum of its proper divisors (1).

16839642101 is an equidigital number, since it uses as much as digits as its factorization.

16839642101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 16839642101 in words is "sixteen billion, eight hundred thirty-nine million, six hundred forty-two thousand, one hundred one".