16670551057551 has 12 divisors (see below), whose sum is σ = 24116560343928. Its totient is φ = 11096681251344.

The previous prime is 16670551057543. The next prime is 16670551057553. The reversal of 16670551057551 is 15575015507661.

16670551057551 is a `hidden beast` number, since 1 + 6 + 6 + 7 + 0 + 5 + 5 + 10 + 575 + 51 = 666.

It is not a de Polignac number, because 16670551057551 - 2³ = 16670551057543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16670551057553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1418281605 + ... + 1418293358.

It is an arithmetic number, because the mean of its divisors is an integer number (2009713361994).

Almost surely, 2^{16670551057551} is an apocalyptic number.

16670551057551 is a deficient number, since it is larger than the sum of its proper divisors (7446009286377).

16670551057551 is a wasteful number, since it uses less digits than its factorization.

16670551057551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836575622 (or 2836575619 counting only the distinct ones).

The product of its (nonzero) digits is 5512500, while the sum is 54.

The spelling of 16670551057551 in words is "sixteen trillion, six hundred seventy billion, five hundred fifty-one million, fifty-seven thousand, five hundred fifty-one".