16211290481 has 2 divisors, whose sum is σ = 16211290482. Its totient is φ = 16211290480.

The previous prime is 16211290451. The next prime is 16211290483. The reversal of 16211290481 is 18409211261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10535174881 + 5676115600 = 102641^2 + 75340^2 .

It is a cyclic number.

It is not a de Polignac number, because 16211290481 - 2¹⁴ = 16211274097 is a prime.

It is a super-2 number, since 2×16211290481² (a number of 21 digits) contains 22 as substring.

Together with 16211290483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16211290483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8105645240 + 8105645241.

It is an arithmetic number, because the mean of its divisors is an integer number (8105645241).

Almost surely, 2^16211290481 is an apocalyptic number.

It is an amenable number.

16211290481 is a deficient number, since it is larger than the sum of its proper divisors (1).

16211290481 is an equidigital number, since it uses as much as digits as its factorization.

16211290481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 35.

The spelling of 16211290481 in words is "sixteen billion, two hundred eleven million, two hundred ninety thousand, four hundred eighty-one".