16122511603 has 4 divisors (see below), whose sum is σ = 17588194488. Its totient is φ = 14656828720.

The previous prime is 16122511519. The next prime is 16122511619. The reversal of 16122511603 is 30611522161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30611522161 = 11 ⋅2782865651.

It is a cyclic number.

It is not a de Polignac number, because 16122511603 - 2²¹ = 16120414451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16122511103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732841426 + ... + 732841447.

It is an arithmetic number, because the mean of its divisors is an integer number (4397048622).

Almost surely, 2^16122511603 is an apocalyptic number.

16122511603 is a deficient number, since it is larger than the sum of its proper divisors (1465682885).

16122511603 is a wasteful number, since it uses less digits than its factorization.

16122511603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465682884.

The product of its (nonzero) digits is 2160, while the sum is 28.

It can be divided in two parts, 16122 and 511603, that added together give a palindrome (527725).

The spelling of 16122511603 in words is "sixteen billion, one hundred twenty-two million, five hundred eleven thousand, six hundred three".