16607105555121 has 16 divisors (see below), whose sum is σ = 24705206982720. Its totient is φ = 11025464264640.

The previous prime is 16607105555101. The next prime is 16607105555137. The reversal of 16607105555121 is 12155550170661.

16607105555121 is a `hidden beast` number, since 1 + 6 + 6 + 0 + 71 + 0 + 5 + 5 + 551 + 21 = 666.

It is not a de Polignac number, because 16607105555121 - 2³⁰ = 16606031813297 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (16607105555101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1276088895 + ... + 1276101908.

It is an arithmetic number, because the mean of its divisors is an integer number (1544075436420).

Almost surely, 2^{16607105555121} is an apocalyptic number.

It is an amenable number.

16607105555121 is a deficient number, since it is larger than the sum of its proper divisors (8098101427599).

16607105555121 is a wasteful number, since it uses less digits than its factorization.

16607105555121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552191053 (or 2552191047 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 45.

The spelling of 16607105555121 in words is "sixteen trillion, six hundred seven billion, one hundred five million, five hundred fifty-five thousand, one hundred twenty-one".