16661166367353 has 16 divisors (see below), whose sum is σ = 23181029523456. Its totient is φ = 10624385241360.

The previous prime is 16661166367337. The next prime is 16661166367367. The reversal of 16661166367353 is 35376366116661.

It is a happy number.

It is not a de Polignac number, because 16661166367353 - 2⁴ = 16661166367337 is a prime.

It is a super-2 number, since 2×16661166367353² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16661166367333) 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, 4571976 + ... + 7363782.

It is an arithmetic number, because the mean of its divisors is an integer number (1448814345216).

Almost surely, 2^{16661166367353} is an apocalyptic number.

It is an amenable number.

16661166367353 is a deficient number, since it is larger than the sum of its proper divisors (6519863156103).

16661166367353 is a wasteful number, since it uses less digits than its factorization.

16661166367353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878324.

The product of its digits is 44089920, while the sum is 60.

The spelling of 16661166367353 in words is "sixteen trillion, six hundred sixty-one billion, one hundred sixty-six million, three hundred sixty-seven thousand, three hundred fifty-three".