166702240167 has 4 divisors (see below), whose sum is σ = 222269653560. Its totient is φ = 111134826776.

The previous prime is 166702240157. The next prime is 166702240171. The reversal of 166702240167 is 761042207661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 166702240167 - 2¹⁶ = 166702174631 is a prime.

It is a super-2 number, since 2×166702240167² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166702240157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27783706692 + ... + 27783706697.

It is an arithmetic number, because the mean of its divisors is an integer number (55567413390).

Almost surely, 2^166702240167 is an apocalyptic number.

166702240167 is a deficient number, since it is larger than the sum of its proper divisors (55567413393).

166702240167 is an equidigital number, since it uses as much as digits as its factorization.

166702240167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55567413392.

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

The spelling of 166702240167 in words is "one hundred sixty-six billion, seven hundred two million, two hundred forty thousand, one hundred sixty-seven".