16690003569 has 12 divisors (see below), whose sum is σ = 24109312500. Its totient is φ = 11125963104.

The previous prime is 16690003553. The next prime is 16690003597. The reversal of 16690003569 is 96530009661.

It can be written as a sum of positive squares in 2 ways, for example, as 13010367969 + 3679635600 = 114063^2 + 60660^2 .

It is not a de Polignac number, because 16690003569 - 2⁴ = 16690003553 is a prime.

It is a super-2 number, since 2×16690003569² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16690003529) 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, 119287 + ... + 218195.

It is an arithmetic number, because the mean of its divisors is an integer number (2009109375).

Almost surely, 2^16690003569 is an apocalyptic number.

It is an amenable number.

16690003569 is a deficient number, since it is larger than the sum of its proper divisors (7419308931).

16690003569 is a wasteful number, since it uses less digits than its factorization.

16690003569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117664 (or 117661 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The spelling of 16690003569 in words is "sixteen billion, six hundred ninety million, three thousand, five hundred sixty-nine".