16668700166835 has 48 divisors (see below), whose sum is σ = 29326969833408. Its totient is φ = 8756499897600.

The previous prime is 16668700166831. The next prime is 16668700166843. The reversal of 16668700166835 is 53866100786661.

It is not a de Polignac number, because 16668700166835 - 2² = 16668700166831 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16668700166831) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 931309 + ... + 5848481.

It is an arithmetic number, because the mean of its divisors is an integer number (610978538196).

Almost surely, 2^{16668700166835} is an apocalyptic number.

16668700166835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16668700166835 is a deficient number, since it is larger than the sum of its proper divisors (12658269666573).

16668700166835 is a wasteful number, since it uses less digits than its factorization.

16668700166835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4918316 (or 4918313 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 16668700166835 in words is "sixteen trillion, six hundred sixty-eight billion, seven hundred million, one hundred sixty-six thousand, eight hundred thirty-five".