16605655066507 has 24 divisors (see below), whose sum is σ = 18111554286000. Its totient is φ = 15217619983488.

The previous prime is 16605655066499. The next prime is 16605655066531. The reversal of 16605655066507 is 70566055650661.

It is not a de Polignac number, because 16605655066507 - 2³ = 16605655066499 is a prime.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16605655066537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12891928 + ... + 14121370.

It is an arithmetic number, because the mean of its divisors is an integer number (754648095250).

Almost surely, 2^{16605655066507} is an apocalyptic number.

16605655066507 is a deficient number, since it is larger than the sum of its proper divisors (1505899219493).

16605655066507 is a wasteful number, since it uses less digits than its factorization.

16605655066507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230047 (or 1230034 counting only the distinct ones).

The product of its (nonzero) digits is 34020000, while the sum is 58.

The spelling of 16605655066507 in words is "sixteen trillion, six hundred five billion, six hundred fifty-five million, sixty-six thousand, five hundred seven".