1151216522305 has 16 divisors (see below), whose sum is σ = 1405324923984. Its totient is φ = 905089351680.

The previous prime is 1151216522243. The next prime is 1151216522317. The reversal of 1151216522305 is 5032256121511.

It can be written as a sum of positive squares in 8 ways, for example, as 279202332816 + 872014189489 = 528396^2 + 933817^2 .

It is not a de Polignac number, because 1151216522305 - 2⁷ = 1151216522177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1285144 + ... + 1988473.

It is an arithmetic number, because the mean of its divisors is an integer number (87832807749).

Almost surely, 2^{1151216522305} is an apocalyptic number.

It is an amenable number.

1151216522305 is a deficient number, since it is larger than the sum of its proper divisors (254108401679).

1151216522305 is a wasteful number, since it uses less digits than its factorization.

1151216522305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3274836.

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 1151216522305 in words is "one trillion, one hundred fifty-one billion, two hundred sixteen million, five hundred twenty-two thousand, three hundred five".