51666010615059 has 32 divisors (see below), whose sum is σ = 70670758625280. Its totient is φ = 33559566363552.

The previous prime is 51666010615031. The next prime is 51666010615127. The reversal of 51666010615059 is 95051601066615.

It is not a de Polignac number, because 51666010615059 - 2²³ = 51666002226451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51666010613059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28246852 + ... + 30020270.

It is an arithmetic number, because the mean of its divisors is an integer number (2208461207040).

Almost surely, 2^{51666010615059} is an apocalyptic number.

51666010615059 is a deficient number, since it is larger than the sum of its proper divisors (19004748010221).

51666010615059 is a wasteful number, since it uses less digits than its factorization.

51666010615059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774399.

The product of its (nonzero) digits is 1458000, while the sum is 51.

The spelling of 51666010615059 in words is "fifty-one trillion, six hundred sixty-six billion, ten million, six hundred fifteen thousand, fifty-nine".