57216514266 has 16 divisors (see below), whose sum is σ = 127147809600. Its totient is φ = 19072171404.

The previous prime is 57216514247. The next prime is 57216514297. The reversal of 57216514266 is 66241561275.

57216514266 is a `hidden beast` number, since 5 + 7 + 216 + 5 + 1 + 426 + 6 = 666.

It is a super-3 number, since 3×57216514266³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529782486 + ... + 529782593.

It is an arithmetic number, because the mean of its divisors is an integer number (7946738100).

Almost surely, 2^57216514266 is an apocalyptic number.

57216514266 is an abundant number, since it is smaller than the sum of its proper divisors (69931295334).

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

57216514266 is a wasteful number, since it uses less digits than its factorization.

57216514266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059565090 (or 1059565084 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The spelling of 57216514266 in words is "fifty-seven billion, two hundred sixteen million, five hundred fourteen thousand, two hundred sixty-six".