16777241641 has 2 divisors, whose sum is σ = 16777241642. Its totient is φ = 16777241640.

The previous prime is 16777241629. The next prime is 16777241651. The reversal of 16777241641 is 14614277761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12837796416 + 3939445225 = 113304^2 + 62765^2 .

It is a cyclic number.

It is not a de Polignac number, because 16777241641 - 2¹⁵ = 16777208873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16777241591 and 16777241600.

It is not a weakly prime, because it can be changed into another prime (16777241651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8388620820 + 8388620821.

It is an arithmetic number, because the mean of its divisors is an integer number (8388620821).

Almost surely, 2^16777241641 is an apocalyptic number.

It is an amenable number.

16777241641 is a deficient number, since it is larger than the sum of its proper divisors (1).

16777241641 is an equidigital number, since it uses as much as digits as its factorization.

16777241641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 395136, while the sum is 46.

The spelling of 16777241641 in words is "sixteen billion, seven hundred seventy-seven million, two hundred forty-one thousand, six hundred forty-one".