167161716447 has 32 divisors (see below), whose sum is σ = 245110821120. Its totient is φ = 100491456000.

The previous prime is 167161716439. The next prime is 167161716457. The reversal of 167161716447 is 744617161761.

It is a happy number.

It is not a de Polignac number, because 167161716447 - 2³ = 167161716439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 167161716447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167161716457) 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, 11271297 + ... + 11286117.

It is an arithmetic number, because the mean of its divisors is an integer number (7659713160).

Almost surely, 2^167161716447 is an apocalyptic number.

167161716447 is a deficient number, since it is larger than the sum of its proper divisors (77949104673).

167161716447 is a wasteful number, since it uses less digits than its factorization.

167161716447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17575.

The product of its digits is 1185408, while the sum is 51.

The spelling of 167161716447 in words is "one hundred sixty-seven billion, one hundred sixty-one million, seven hundred sixteen thousand, four hundred forty-seven".