51666853337 has 8 divisors (see below), whose sum is σ = 56366244480. Its totient is φ = 46967862960.

The previous prime is 51666853319. The next prime is 51666853369. The reversal of 51666853337 is 73335866615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51666853337 - 2²⁸ = 51398417881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51666853037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211568 + ... + 384830.

It is an arithmetic number, because the mean of its divisors is an integer number (7045780560).

Almost surely, 2^51666853337 is an apocalyptic number.

It is an amenable number.

51666853337 is a deficient number, since it is larger than the sum of its proper divisors (4699391143).

51666853337 is a wasteful number, since it uses less digits than its factorization.

51666853337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200383.

The product of its digits is 8164800, while the sum is 53.

The spelling of 51666853337 in words is "fifty-one billion, six hundred sixty-six million, eight hundred fifty-three thousand, three hundred thirty-seven".