16577221041 has 12 divisors (see below), whose sum is σ = 24068944068. Its totient is φ = 10994217984.

The previous prime is 16577221013. The next prime is 16577221069. The reversal of 16577221041 is 14012277561.

16577221041 is a `hidden beast` number, since 16 + 577 + 22 + 10 + 41 = 666.

It is an interprime number because it is at equal distance from previous prime (16577221013) and next prime (16577221069).

It can be written as a sum of positive squares in 2 ways, for example, as 9999200016 + 6578021025 = 99996^2 + 81105^2 .

It is not a de Polignac number, because 16577221041 - 2⁵ = 16577221009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16577220987 and 16577221005.

It is not an unprimeable number, because it can be changed into a prime (16577221081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4770060 + ... + 4773533.

It is an arithmetic number, because the mean of its divisors is an integer number (2005745339).

Almost surely, 2^16577221041 is an apocalyptic number.

It is an amenable number.

16577221041 is a deficient number, since it is larger than the sum of its proper divisors (7491723027).

16577221041 is a wasteful number, since it uses less digits than its factorization.

16577221041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9543792 (or 9543789 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The spelling of 16577221041 in words is "sixteen billion, five hundred seventy-seven million, two hundred twenty-one thousand, forty-one".