167143257078 has 16 divisors (see below), whose sum is σ = 382041730560. Its totient is φ = 47755216296.

The previous prime is 167143257077. The next prime is 167143257097. The reversal of 167143257078 is 870752341761.

It is a self number, because there is not a number n which added to its sum of digits gives 167143257078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167143257077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1989800638 + ... + 1989800721.

It is an arithmetic number, because the mean of its divisors is an integer number (23877608160).

Almost surely, 2^167143257078 is an apocalyptic number.

167143257078 is an abundant number, since it is smaller than the sum of its proper divisors (214898473482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

167143257078 is a wasteful number, since it uses less digits than its factorization.

167143257078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979601371.

The product of its (nonzero) digits is 1975680, while the sum is 51.

The spelling of 167143257078 in words is "one hundred sixty-seven billion, one hundred forty-three million, two hundred fifty-seven thousand, seventy-eight".