16212711061 has 2 divisors, whose sum is σ = 16212711062. Its totient is φ = 16212711060.

The previous prime is 16212711059. The next prime is 16212711107. The reversal of 16212711061 is 16011721261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12038258961 + 4174452100 = 109719^2 + 64610^2 .

It is a cyclic number.

It is not a de Polignac number, because 16212711061 - 2¹ = 16212711059 is a prime.

Together with 16212711059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16212711041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8106355530 + 8106355531.

It is an arithmetic number, because the mean of its divisors is an integer number (8106355531).

Almost surely, 2^16212711061 is an apocalyptic number.

It is an amenable number.

16212711061 is a deficient number, since it is larger than the sum of its proper divisors (1).

16212711061 is an equidigital number, since it uses as much as digits as its factorization.

16212711061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 16212711061 in words is "sixteen billion, two hundred twelve million, seven hundred eleven thousand, sixty-one".