57516112122012 has 36 divisors (see below), whose sum is σ = 151709165309520. Its totient is φ = 18338470531392.

The previous prime is 57516112122011. The next prime is 57516112122031. The reversal of 57516112122012 is 21022121161575.

57516112122012 is a `hidden beast` number, since 5 + 7 + 5 + 1 + 611 + 2 + 1 + 2 + 20 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57516112122011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34731950937 + ... + 34731952592.

It is an arithmetic number, because the mean of its divisors is an integer number (4214143480820).

Almost surely, 2^{57516112122012} is an apocalyptic number.

It is an amenable number.

57516112122012 is an abundant number, since it is smaller than the sum of its proper divisors (94193053187508).

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

57516112122012 is a wasteful number, since it uses less digits than its factorization.

57516112122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69463903562 (or 69463903557 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 36.

Adding to 57516112122012 its reverse (21022121161575), we get a palindrome (78538233283587).

The spelling of 57516112122012 in words is "fifty-seven trillion, five hundred sixteen billion, one hundred twelve million, one hundred twenty-two thousand, twelve".