16455179381 has 2 divisors, whose sum is σ = 16455179382. Its totient is φ = 16455179380.

The previous prime is 16455179329. The next prime is 16455179383. The reversal of 16455179381 is 18397155461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13210054225 + 3245125156 = 114935^2 + 56966^2 .

It is a cyclic number.

It is not a de Polignac number, because 16455179381 - 2¹⁰ = 16455178357 is a prime.

It is a super-2 number, since 2×16455179381² (a number of 21 digits) contains 22 as substring.

Together with 16455179383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16455179383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8227589690 + 8227589691.

It is an arithmetic number, because the mean of its divisors is an integer number (8227589691).

Almost surely, 2^16455179381 is an apocalyptic number.

It is an amenable number.

16455179381 is a deficient number, since it is larger than the sum of its proper divisors (1).

16455179381 is an equidigital number, since it uses as much as digits as its factorization.

16455179381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 50.

The spelling of 16455179381 in words is "sixteen billion, four hundred fifty-five million, one hundred seventy-nine thousand, three hundred eighty-one".