2051886116505 has 32 divisors (see below), whose sum is σ = 3359456985600. Its totient is φ = 1068951026432.

The previous prime is 2051886116473. The next prime is 2051886116519. The reversal of 2051886116505 is 5056116881502.

It is a cyclic number.

It is not a de Polignac number, because 2051886116505 - 2⁵ = 2051886116473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2500170 + ... + 3217859.

It is an arithmetic number, because the mean of its divisors is an integer number (104983030800).

Almost surely, 2^{2051886116505} is an apocalyptic number.

It is an amenable number.

2051886116505 is a deficient number, since it is larger than the sum of its proper divisors (1307570869095).

2051886116505 is a wasteful number, since it uses less digits than its factorization.

2051886116505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5718593.

The product of its (nonzero) digits is 576000, while the sum is 48.

The spelling of 2051886116505 in words is "two trillion, fifty-one billion, eight hundred eighty-six million, one hundred sixteen thousand, five hundred five".