16616455051 has 8 divisors (see below), whose sum is σ = 18993498624. Its totient is φ = 14240227560.

The previous prime is 16616455043. The next prime is 16616455069. The reversal of 16616455051 is 15055461661.

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 16616455051 - 2³ = 16616455043 is a prime.

It is a super-2 number, since 2×16616455051² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16616454995 and 16616455013.

It is not an unprimeable number, because it can be changed into a prime (16616455081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159745 + ... + 242386.

It is an arithmetic number, because the mean of its divisors is an integer number (2374187328).

Almost surely, 2^16616455051 is an apocalyptic number.

16616455051 is a deficient number, since it is larger than the sum of its proper divisors (2377043573).

16616455051 is an equidigital number, since it uses as much as digits as its factorization.

16616455051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408041.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 16616455051 in words is "sixteen billion, six hundred sixteen million, four hundred fifty-five thousand, fifty-one".