16616490685 has 8 divisors (see below), whose sum is σ = 20364039936. Its totient is φ = 13010358480.

The previous prime is 16616490677. The next prime is 16616490713. The reversal of 16616490685 is 58609461661.

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

It is not a de Polignac number, because 16616490685 - 2³ = 16616490677 is a prime.

It is a super-2 number, since 2×16616490685² (a number of 21 digits) contains 22 as substring.

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, 35354001 + ... + 35354470.

It is an arithmetic number, because the mean of its divisors is an integer number (2545504992).

Almost surely, 2^16616490685 is an apocalyptic number.

It is an amenable number.

16616490685 is a deficient number, since it is larger than the sum of its proper divisors (3747549251).

16616490685 is an equidigital number, since it uses as much as digits as its factorization.

16616490685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70708523.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 16616490685 in words is "sixteen billion, six hundred sixteen million, four hundred ninety thousand, six hundred eighty-five".