16509028383 has 12 divisors (see below), whose sum is σ = 23950509960. Its totient is φ = 10957956336.

The previous prime is 16509028339. The next prime is 16509028463. The reversal of 16509028383 is 38382090561.

It is a happy number.

16509028383 is a `hidden beast` number, since 165 + 0 + 90 + 28 + 383 = 666.

It is not a de Polignac number, because 16509028383 - 2²² = 16504834079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16509020383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4003041 + ... + 4007162.

It is an arithmetic number, because the mean of its divisors is an integer number (1995875830).

Almost surely, 2^16509028383 is an apocalyptic number.

16509028383 is a deficient number, since it is larger than the sum of its proper divisors (7441481577).

16509028383 is a wasteful number, since it uses less digits than its factorization.

16509028383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8010438 (or 8010435 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 16509028383 in words is "sixteen billion, five hundred nine million, twenty-eight thousand, three hundred eighty-three".