57212154642161 has 8 divisors (see below), whose sum is σ = 57363820372320. Its totient is φ = 57060560918592.

The previous prime is 57212154642133. The next prime is 57212154642163. The reversal of 57212154642161 is 16124645121275.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57212154642161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57212154642163) 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, 16410275 + ... + 19588808.

It is an arithmetic number, because the mean of its divisors is an integer number (7170477546540).

Almost surely, 2^{57212154642161} is an apocalyptic number.

It is an amenable number.

57212154642161 is a deficient number, since it is larger than the sum of its proper divisors (151665730159).

57212154642161 is a wasteful number, since it uses less digits than its factorization.

57212154642161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36003295.

The product of its digits is 806400, while the sum is 47.

The spelling of 57212154642161 in words is "fifty-seven trillion, two hundred twelve billion, one hundred fifty-four million, six hundred forty-two thousand, one hundred sixty-one".