16325486761 has 2 divisors, whose sum is σ = 16325486762. Its totient is φ = 16325486760.

The previous prime is 16325486759. The next prime is 16325486773. The reversal of 16325486761 is 16768452361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15835705600 + 489781161 = 125840^2 + 22131^2 .

It is an emirp because it is prime and its reverse (16768452361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16325486761 - 2¹ = 16325486759 is a prime.

It is a super-2 number, since 2×16325486761² (a number of 21 digits) contains 22 as substring.

Together with 16325486759, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16325486701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8162743380 + 8162743381.

It is an arithmetic number, because the mean of its divisors is an integer number (8162743381).

Almost surely, 2^16325486761 is an apocalyptic number.

It is an amenable number.

16325486761 is a deficient number, since it is larger than the sum of its proper divisors (1).

16325486761 is an equidigital number, since it uses as much as digits as its factorization.

16325486761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 49.

The spelling of 16325486761 in words is "sixteen billion, three hundred twenty-five million, four hundred eighty-six thousand, seven hundred sixty-one".