167286993492880 has 20 divisors (see below), whose sum is σ = 388942259871132. Its totient is φ = 66914797397120.

The previous prime is 167286993492823. The next prime is 167286993492881. The reversal of 167286993492880 is 88294399682761.

It can be written as a sum of positive squares in 2 ways, for example, as 44944635013776 + 122342358479104 = 6704076^2 + 11060848^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×167286993492880² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 167286993492794 and 167286993492803.

It is not an unprimeable number, because it can be changed into a prime (167286993492881) 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, 1045543709251 + ... + 1045543709410.

Almost surely, 2^{167286993492880} is an apocalyptic number.

167286993492880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

167286993492880 is an abundant number, since it is smaller than the sum of its proper divisors (221655266378252).

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

167286993492880 is a wasteful number, since it uses less digits than its factorization.

167286993492880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091087418674 (or 2091087418668 counting only the distinct ones).

The product of its (nonzero) digits is 4514807808, while the sum is 82.

The spelling of 167286993492880 in words is "one hundred sixty-seven trillion, two hundred eighty-six billion, nine hundred ninety-three million, four hundred ninety-two thousand, eight hundred eighty".