16219409452 has 6 divisors (see below), whose sum is σ = 28383966548. Its totient is φ = 8109704724.

The previous prime is 16219409417. The next prime is 16219409519. The reversal of 16219409452 is 25490491261.

It is a junction number, because it is equal to n+sod(n) for n = 16219409399 and 16219409408.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2027426178 + ... + 2027426185.

Almost surely, 2^16219409452 is an apocalyptic number.

It is an amenable number.

16219409452 is a deficient number, since it is larger than the sum of its proper divisors (12164557096).

16219409452 is a wasteful number, since it uses less digits than its factorization.

16219409452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054852367 (or 4054852365 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 16219409452 in words is "sixteen billion, two hundred nineteen million, four hundred nine thousand, four hundred fifty-two".