16485785207 has 8 divisors (see below), whose sum is σ = 17467527600. Its totient is φ = 15505375104.

The previous prime is 16485785171. The next prime is 16485785227. The reversal of 16485785207 is 70258758461.

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 16485785207 - 2²⁴ = 16469007991 is a prime.

It is a super-2 number, since 2×16485785207² (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 (16485785227) 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, 307532 + ... + 357137.

It is an arithmetic number, because the mean of its divisors is an integer number (2183440950).

Almost surely, 2^16485785207 is an apocalyptic number.

16485785207 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

16485785207 is a deficient number, since it is larger than the sum of its proper divisors (981742393).

16485785207 is a wasteful number, since it uses less digits than its factorization.

16485785207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666145.

The product of its (nonzero) digits is 3763200, while the sum is 53.

The spelling of 16485785207 in words is "sixteen billion, four hundred eighty-five million, seven hundred eighty-five thousand, two hundred seven".