173730421066 has 16 divisors (see below), whose sum is σ = 266315385600. Its totient is φ = 84978801648.

The previous prime is 173730421037. The next prime is 173730421171. The reversal of 173730421066 is 660124037371.

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, 5026630 + ... + 5061073.

It is an arithmetic number, because the mean of its divisors is an integer number (16644711600).

Almost surely, 2^173730421066 is an apocalyptic number.

173730421066 is a deficient number, since it is larger than the sum of its proper divisors (92584964534).

173730421066 is a wasteful number, since it uses less digits than its factorization.

173730421066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10087893.

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 173730421066 in words is "one hundred seventy-three billion, seven hundred thirty million, four hundred twenty-one thousand, sixty-six".