173681020204 has 24 divisors (see below), whose sum is σ = 311571792000. Its totient is φ = 84663457920.

The previous prime is 173681020181. The next prime is 173681020223. The reversal of 173681020204 is 402020186371.

It is a self number, because there is not a number n which added to its sum of digits gives 173681020204.

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, 131979 + ... + 603970.

It is an arithmetic number, because the mean of its divisors is an integer number (12982158000).

Almost surely, 2^173681020204 is an apocalyptic number.

It is an amenable number.

173681020204 is a deficient number, since it is larger than the sum of its proper divisors (137890771796).

173681020204 is a wasteful number, since it uses less digits than its factorization.

173681020204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737433 (or 737431 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 173681020204 in words is "one hundred seventy-three billion, six hundred eighty-one million, twenty thousand, two hundred four".