68166573 has 8 divisors (see below), whose sum is σ = 91543200. Its totient is φ = 45117168.

The previous prime is 68166557. The next prime is 68166599. The reversal of 68166573 is 37566186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68166573 - 2⁴ = 68166557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68166523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81318 + ... + 82151.

It is an arithmetic number, because the mean of its divisors is an integer number (11442900).

Almost surely, 2^68166573 is an apocalyptic number.

It is an amenable number.

68166573 is a deficient number, since it is larger than the sum of its proper divisors (23376627).

68166573 is a wasteful number, since it uses less digits than its factorization.

68166573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163611.

The product of its digits is 181440, while the sum is 42.

The square root of 68166573 is about 8256.3050452366. The cubic root of 68166573 is about 408.4985195707.

The spelling of 68166573 in words is "sixty-eight million, one hundred sixty-six thousand, five hundred seventy-three".