16616644046 has 8 divisors (see below), whose sum is σ = 25455284640. Its totient is φ = 8131549168.

The previous prime is 16616644039. The next prime is 16616644091. The reversal of 16616644046 is 64044661661.

It is a happy number.

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

It is a super-2 number, since 2×16616644046² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16616643988 and 16616644006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88386311 + ... + 88386498.

It is an arithmetic number, because the mean of its divisors is an integer number (3181910580).

Almost surely, 2^16616644046 is an apocalyptic number.

16616644046 is a deficient number, since it is larger than the sum of its proper divisors (8838640594).

16616644046 is a wasteful number, since it uses less digits than its factorization.

16616644046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176772858.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 16616644046 in words is "sixteen billion, six hundred sixteen million, six hundred forty-four thousand, forty-six".