16851518485 has 8 divisors (see below), whose sum is σ = 20227602816. Its totient is φ = 13477361040.

The previous prime is 16851518479. The next prime is 16851518557. The reversal of 16851518485 is 58481515861.

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

It is not a de Polignac number, because 16851518485 - 2³ = 16851518477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462409 + ... + 497518.

It is an arithmetic number, because the mean of its divisors is an integer number (2528450352).

Almost surely, 2^16851518485 is an apocalyptic number.

It is an amenable number.

16851518485 is a deficient number, since it is larger than the sum of its proper divisors (3376084331).

16851518485 is an equidigital number, since it uses as much as digits as its factorization.

16851518485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963443.

The product of its digits is 1536000, while the sum is 52.

The spelling of 16851518485 in words is "sixteen billion, eight hundred fifty-one million, five hundred eighteen thousand, four hundred eighty-five".