16464242519 has 8 divisors (see below), whose sum is σ = 16569985872. Its totient is φ = 16358808960.

The previous prime is 16464242489. The next prime is 16464242563. The reversal of 16464242519 is 91524246461.

It is a happy number.

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 16464242519 - 2¹² = 16464238423 is a prime.

It is a super-2 number, since 2×16464242519² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16464242519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16464242419) 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, 29657 + ... + 183869.

It is an arithmetic number, because the mean of its divisors is an integer number (2071248234).

Almost surely, 2^16464242519 is an apocalyptic number.

16464242519 is a deficient number, since it is larger than the sum of its proper divisors (105743353).

16464242519 is a wasteful number, since it uses less digits than its factorization.

16464242519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154897.

The product of its digits is 414720, while the sum is 44.

The spelling of 16464242519 in words is "sixteen billion, four hundred sixty-four million, two hundred forty-two thousand, five hundred nineteen".