16498956277 has 2 divisors, whose sum is σ = 16498956278. Its totient is φ = 16498956276.

The previous prime is 16498956203. The next prime is 16498956289. The reversal of 16498956277 is 77265989461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14854978161 + 1643978116 = 121881^2 + 40546^2 .

It is an emirp because it is prime and its reverse (77265989461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16498956277 - 2¹¹ = 16498954229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16498956077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8249478138 + 8249478139.

It is an arithmetic number, because the mean of its divisors is an integer number (8249478139).

Almost surely, 2^16498956277 is an apocalyptic number.

It is an amenable number.

16498956277 is a deficient number, since it is larger than the sum of its proper divisors (1).

16498956277 is an equidigital number, since it uses as much as digits as its factorization.

16498956277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45722880, while the sum is 64.

The spelling of 16498956277 in words is "sixteen billion, four hundred ninety-eight million, nine hundred fifty-six thousand, two hundred seventy-seven".