51071065606605 has 16 divisors (see below), whose sum is σ = 89142223604544. Its totient is φ = 24761728778880.

The previous prime is 51071065606601. The next prime is 51071065606621. The reversal of 51071065606605 is 50660656017015.

It is not a de Polignac number, because 51071065606605 - 2² = 51071065606601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51071065606601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154760804704 + ... + 154760805033.

It is an arithmetic number, because the mean of its divisors is an integer number (5571388975284).

Almost surely, 2^{51071065606605} is an apocalyptic number.

51071065606605 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51071065606605 is a deficient number, since it is larger than the sum of its proper divisors (38071157997939).

51071065606605 is a wasteful number, since it uses less digits than its factorization.

51071065606605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309521609756.

The product of its (nonzero) digits is 1134000, while the sum is 48.

The spelling of 51071065606605 in words is "fifty-one trillion, seventy-one billion, sixty-five million, six hundred six thousand, six hundred five".