167431371444 has 18 divisors (see below), whose sum is σ = 423229300130. Its totient is φ = 55810457136.

The previous prime is 167431371439. The next prime is 167431371509. The reversal of 167431371444 is 444173134761.

It is a happy number.

167431371444 is a `hidden beast` number, since 1 + 6 + 74 + 3 + 137 + 1 + 444 = 666.

It can be written as a sum of positive squares in only one way, i.e., 151095464100 + 16335907344 = 388710^2 + 127812^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 167431371444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2325435679 + ... + 2325435750.

Almost surely, 2^167431371444 is an apocalyptic number.

It is an amenable number.

167431371444 is an abundant number, since it is smaller than the sum of its proper divisors (255797928686).

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

167431371444 is a wasteful number, since it uses less digits than its factorization.

167431371444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4650871439 (or 4650871434 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The spelling of 167431371444 in words is "one hundred sixty-seven billion, four hundred thirty-one million, three hundred seventy-one thousand, four hundred forty-four".