1051115516605 has 64 divisors (see below), whose sum is σ = 1727317094400. Its totient is φ = 593765061120.

The previous prime is 1051115516603. The next prime is 1051115516639. The reversal of 1051115516605 is 5066155111501.

It is not a de Polignac number, because 1051115516605 - 2¹ = 1051115516603 is a prime.

It is a super-2 number, since 2×1051115516605² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051115516603) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2955520 + ... + 3292009.

It is an arithmetic number, because the mean of its divisors is an integer number (26989329600).

Almost surely, 2^{1051115516605} is an apocalyptic number.

It is an amenable number.

1051115516605 is a deficient number, since it is larger than the sum of its proper divisors (676201577795).

1051115516605 is a wasteful number, since it uses less digits than its factorization.

1051115516605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6247594.

The product of its (nonzero) digits is 22500, while the sum is 37.

The spelling of 1051115516605 in words is "one trillion, fifty-one billion, one hundred fifteen million, five hundred sixteen thousand, six hundred five".