51108084640566 has 12 divisors (see below), whose sum is σ = 110734183387932. Its totient is φ = 17036028213516.

The previous prime is 51108084640541. The next prime is 51108084640589. The reversal of 51108084640566 is 66504648080115.

It is a happy number.

51108084640566 is a `hidden beast` number, since 5 + 1 + 10 + 8 + 0 + 8 + 4 + 64 + 0 + 566 = 666.

It is a super-2 number, since 2×51108084640566² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1419669017776 + ... + 1419669017811.

It is an arithmetic number, because the mean of its divisors is an integer number (9227848615661).

Almost surely, 2^{51108084640566} is an apocalyptic number.

51108084640566 is an abundant number, since it is smaller than the sum of its proper divisors (59626098747366).

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

51108084640566 is a wasteful number, since it uses less digits than its factorization.

51108084640566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839338035595 (or 2839338035592 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The spelling of 51108084640566 in words is "fifty-one trillion, one hundred eight billion, eighty-four million, six hundred forty thousand, five hundred sixty-six".