16450657979776 has 32 divisors (see below), whose sum is σ = 32772978485280. Its totient is φ = 8225282987520.

The previous prime is 16450657979729. The next prime is 16450657979809. The reversal of 16450657979776 is 67797975605461.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 16450657979696 and 16450657979705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42563590 + ... + 42948346.

It is an arithmetic number, because the mean of its divisors is an integer number (1024155577665).

Almost surely, 2^{16450657979776} is an apocalyptic number.

16450657979776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16450657979776 is a deficient number, since it is larger than the sum of its proper divisors (16322320505504).

16450657979776 is an equidigital number, since it uses as much as digits as its factorization.

16450657979776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718802 (or 718790 counting only the distinct ones).

The product of its (nonzero) digits is 4200789600, while the sum is 79.

The spelling of 16450657979776 in words is "sixteen trillion, four hundred fifty billion, six hundred fifty-seven million, nine hundred seventy-nine thousand, seven hundred seventy-six".