167990479017870 has 16 divisors (see below), whose sum is σ = 403177149642960. Its totient is φ = 44797461071424.

The previous prime is 167990479017857. The next prime is 167990479017947. The reversal of 167990479017870 is 78710974099761.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 167990479017792 and 167990479017801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2799841316935 + ... + 2799841316994.

It is an arithmetic number, because the mean of its divisors is an integer number (25198571852685).

Almost surely, 2^{167990479017870} is an apocalyptic number.

167990479017870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

167990479017870 is an abundant number, since it is smaller than the sum of its proper divisors (235186670625090).

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

167990479017870 is a wasteful number, since it uses less digits than its factorization.

167990479017870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5599682633939.

The product of its (nonzero) digits is 336063168, while the sum is 75.

The spelling of 167990479017870 in words is "one hundred sixty-seven trillion, nine hundred ninety billion, four hundred seventy-nine million, seventeen thousand, eight hundred seventy".