51666010615060 has 24 divisors (see below), whose sum is σ = 108763900113960. Its totient is φ = 20615875137024.

The previous prime is 51666010615031. The next prime is 51666010615127. The reversal of 51666010615060 is 6051601066615.

It can be written as a sum of positive squares in 4 ways, for example, as 8130242444164 + 43535768170896 = 2851358^2 + 6598164^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51666010614998 and 51666010615016.

It is a congruent number.

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, 3158060929 + ... + 3158077288.

It is an arithmetic number, because the mean of its divisors is an integer number (4531829171415).

Almost surely, 2^{51666010615060} is an apocalyptic number.

It is an amenable number.

51666010615060 is an abundant number, since it is smaller than the sum of its proper divisors (57097889498900).

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

51666010615060 is a wasteful number, since it uses less digits than its factorization.

51666010615060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6316138635 (or 6316138633 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 51666010615060 in words is "fifty-one trillion, six hundred sixty-six billion, ten million, six hundred fifteen thousand, sixty".