57166508412 has 144 divisors (see below), whose sum is σ = 159472593280. Its totient is φ = 17155442304.

The previous prime is 57166508411. The next prime is 57166508429. The reversal of 57166508412 is 21480566175.

57166508412 is a `hidden beast` number, since 5 + 71 + 66 + 508 + 4 + 12 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57166508411) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17284863 + ... + 17288169.

Almost surely, 2^57166508412 is an apocalyptic number.

57166508412 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57166508412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79736296640).

57166508412 is an abundant number, since it is smaller than the sum of its proper divisors (102306084868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57166508412 is a wasteful number, since it uses less digits than its factorization.

57166508412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4232 (or 4227 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 57166508412 in words is "fifty-seven billion, one hundred sixty-six million, five hundred eight thousand, four hundred twelve".