16616111490 has 96 divisors (see below), whose sum is σ = 49178503296. Its totient is φ = 3853006080.

The previous prime is 16616111459. The next prime is 16616111509. The reversal of 16616111490 is 9411161661.

16616111490 is a `hidden beast` number, since 1 + 6 + 6 + 161 + 1 + 1 + 490 = 666.

It is a super-2 number, since 2×16616111490² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 342099 + ... + 387638.

It is an arithmetic number, because the mean of its divisors is an integer number (512276076).

Almost surely, 2^16616111490 is an apocalyptic number.

16616111490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16616111490 is an abundant number, since it is smaller than the sum of its proper divisors (32562391806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16616111490 is a wasteful number, since it uses less digits than its factorization.

16616111490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729784 (or 729781 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The spelling of 16616111490 in words is "sixteen billion, six hundred sixteen million, one hundred eleven thousand, four hundred ninety".