16220499245 has 6 divisors (see below), whose sum is σ = 19464940842. Its totient is φ = 12976171568.

The previous prime is 16220499223. The next prime is 16220499247. The reversal of 16220499245 is 54299402261.

It can be written as a sum of positive squares in 3 ways, for example, as 299359204 + 15921140041 = 17302^2 + 126179^2 .

It is not a de Polignac number, because 16220499245 - 2¹⁸ = 16220237101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16220499196 and 16220499205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16220499247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 256307 + ... + 313263.

It is an arithmetic number, because the mean of its divisors is an integer number (3244156807).

Almost surely, 2^16220499245 is an apocalyptic number.

It is an amenable number.

16220499245 is a deficient number, since it is larger than the sum of its proper divisors (3244441597).

16220499245 is an frugal number, since it uses more digits than its factorization.

16220499245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113919 (or 56962 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 16220499245 in words is "sixteen billion, two hundred twenty million, four hundred ninety-nine thousand, two hundred forty-five".