173400166890 has 48 divisors (see below), whose sum is σ = 450865015848. Its totient is φ = 46237523328.

The previous prime is 173400166873. The next prime is 173400166937. The reversal of 173400166890 is 98661004371.

It is a happy number.

173400166890 is a `hidden beast` number, since 1 + 7 + 3 + 400 + 166 + 89 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 160806614049 + 12593552841 = 401007^2 + 112221^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2090244 + ... + 2171616.

Almost surely, 2^173400166890 is an apocalyptic number.

173400166890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

173400166890 is an abundant number, since it is smaller than the sum of its proper divisors (277464848958).

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

173400166890 is a wasteful number, since it uses less digits than its factorization.

173400166890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105063 (or 105060 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 173400166890 in words is "one hundred seventy-three billion, four hundred million, one hundred sixty-six thousand, eight hundred ninety".