51066170551 has 8 divisors (see below), whose sum is σ = 56019772800. Its totient is φ = 46164438840.

The previous prime is 51066170377. The next prime is 51066170633. The reversal of 51066170551 is 15507166015.

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 51066170551 - 2¹⁵ = 51066137783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51066170551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51066170251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12965571 + ... + 12969508.

It is an arithmetic number, because the mean of its divisors is an integer number (7002471600).

Almost surely, 2^51066170551 is an apocalyptic number.

51066170551 is a deficient number, since it is larger than the sum of its proper divisors (4953602249).

51066170551 is a wasteful number, since it uses less digits than its factorization.

51066170551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25935269.

The product of its (nonzero) digits is 31500, while the sum is 37.

The spelling of 51066170551 in words is "fifty-one billion, sixty-six million, one hundred seventy thousand, five hundred fifty-one".