16701668687053 has 4 divisors (see below), whose sum is σ = 19087621356640. Its totient is φ = 14315716017468.

The previous prime is 16701668687009. The next prime is 16701668687113. The reversal of 16701668687053 is 35078686610761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16701668687053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16701668687453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1192976334783 + ... + 1192976334796.

It is an arithmetic number, because the mean of its divisors is an integer number (4771905339160).

Almost surely, 2^{16701668687053} is an apocalyptic number.

It is an amenable number.

16701668687053 is a deficient number, since it is larger than the sum of its proper divisors (2385952669587).

16701668687053 is an equidigital number, since it uses as much as digits as its factorization.

16701668687053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2385952669586.

The product of its (nonzero) digits is 60963840, while the sum is 64.

The spelling of 16701668687053 in words is "sixteen trillion, seven hundred one billion, six hundred sixty-eight million, six hundred eighty-seven thousand, fifty-three".