16661051614416 has 80 divisors (see below), whose sum is σ = 46971615195648. Its totient is φ = 5046895728000.

The previous prime is 16661051614379. The next prime is 16661051614439. The reversal of 16661051614416 is 61441615016661.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4562910 + ... + 7358141.

Almost surely, 2^{16661051614416} is an apocalyptic number.

16661051614416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16661051614416 is an abundant number, since it is smaller than the sum of its proper divisors (30310563581232).

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

16661051614416 is a wasteful number, since it uses less digits than its factorization.

16661051614416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11923720 (or 11923714 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 16661051614416 in words is "sixteen trillion, six hundred sixty-one billion, fifty-one million, six hundred fourteen thousand, four hundred sixteen".