16662207220071 has 32 divisors (see below), whose sum is σ = 26684548423680. Its totient is φ = 9041773254624.

The previous prime is 16662207219991. The next prime is 16662207220103. The reversal of 16662207220071 is 17002270226661.

It is not a de Polignac number, because 16662207220071 - 2¹⁵ = 16662207187303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16662207210071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124023955 + ... + 124158228.

It is an arithmetic number, because the mean of its divisors is an integer number (833892138240).

Almost surely, 2^{16662207220071} is an apocalyptic number.

16662207220071 is a deficient number, since it is larger than the sum of its proper divisors (10022341203609).

16662207220071 is a wasteful number, since it uses less digits than its factorization.

16662207220071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248182355.

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 16662207220071 in words is "sixteen trillion, six hundred sixty-two billion, two hundred seven million, two hundred twenty thousand, seventy-one".