216104060677 has 2 divisors, whose sum is σ = 216104060678. Its totient is φ = 216104060676.

The previous prime is 216104060633. The next prime is 216104060699. The reversal of 216104060677 is 776060401612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203016929476 + 13087131201 = 450574^2 + 114399^2 .

It is a cyclic number.

It is not a de Polignac number, because 216104060677 - 2¹¹ = 216104058629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216104060617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108052030338 + 108052030339.

It is an arithmetic number, because the mean of its divisors is an integer number (108052030339).

Almost surely, 2^216104060677 is an apocalyptic number.

It is an amenable number.

216104060677 is a deficient number, since it is larger than the sum of its proper divisors (1).

216104060677 is an equidigital number, since it uses as much as digits as its factorization.

216104060677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 216104060677 in words is "two hundred sixteen billion, one hundred four million, sixty thousand, six hundred seventy-seven".