51005110016605 has 8 divisors (see below), whose sum is σ = 61206170667264. Its totient is φ = 40804062248400.

The previous prime is 51005110016579. The next prime is 51005110016677. The reversal of 51005110016605 is 50661001150015.

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

It is not a de Polignac number, because 51005110016605 - 2⁷ = 51005110016477 is a prime.

It is a Duffinian number.

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, 12216300 + ... + 15850810.

It is an arithmetic number, because the mean of its divisors is an integer number (7650771333408).

Almost surely, 2^{51005110016605} is an apocalyptic number.

It is an amenable number.

51005110016605 is a deficient number, since it is larger than the sum of its proper divisors (10201060650659).

51005110016605 is a wasteful number, since it uses less digits than its factorization.

51005110016605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6441227.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 51005110016605 in words is "fifty-one trillion, five billion, one hundred ten million, sixteen thousand, six hundred five".