16696969519 has 8 divisors (see below), whose sum is σ = 17106133968. Its totient is φ = 16287896640.

The previous prime is 16696969459. The next prime is 16696969529. The reversal of 16696969519 is 91596969661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16696969519 - 2¹³ = 16696961327 is a prime.

It is a super-2 number, since 2×16696969519² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16696969529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479569 + ... + 513205.

It is an arithmetic number, because the mean of its divisors is an integer number (2138266746).

Almost surely, 2^16696969519 is an apocalyptic number.

16696969519 is a deficient number, since it is larger than the sum of its proper divisors (409164449).

16696969519 is a wasteful number, since it uses less digits than its factorization.

16696969519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45785.

The product of its digits is 42515280, while the sum is 67.

The spelling of 16696969519 in words is "sixteen billion, six hundred ninety-six million, nine hundred sixty-nine thousand, five hundred nineteen".