173345012090 has 32 divisors (see below), whose sum is σ = 323811784080. Its totient is φ = 66733115904.

The previous prime is 173345012081. The next prime is 173345012233. The reversal of 173345012090 is 90210543371.

It can be written as a sum of positive squares in 8 ways, for example, as 7599131929 + 165745880161 = 87173^2 + 407119^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 173345012090.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 864089 + ... + 1045628.

Almost surely, 2^173345012090 is an apocalyptic number.

173345012090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

173345012090 is a deficient number, since it is larger than the sum of its proper divisors (150466771990).

173345012090 is a wasteful number, since it uses less digits than its factorization.

173345012090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910066.

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 173345012090 in words is "one hundred seventy-three billion, three hundred forty-five million, twelve thousand, ninety".