57165720223 has 8 divisors (see below), whose sum is σ = 60189836400. Its totient is φ = 54143143488.

The previous prime is 57165720203. The next prime is 57165720229. The reversal of 57165720223 is 32202756175.

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

It is a cyclic number.

It is not a de Polignac number, because 57165720223 - 2⁹ = 57165719711 is a prime.

It is a super-2 number, since 2×57165720223² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57165720229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308236 + ... + 457537.

It is an arithmetic number, because the mean of its divisors is an integer number (7523729550).

Almost surely, 2^57165720223 is an apocalyptic number.

57165720223 is a deficient number, since it is larger than the sum of its proper divisors (3024116177).

57165720223 is a wasteful number, since it uses less digits than its factorization.

57165720223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769721.

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 57165720223 in words is "fifty-seven billion, one hundred sixty-five million, seven hundred twenty thousand, two hundred twenty-three".