1086566488225 has 27 divisors (see below), whose sum is σ = 1356719826483. Its totient is φ = 863244883440.

The previous prime is 1086566488213. The next prime is 1086566488261. The reversal of 1086566488225 is 5228846656801.

The square root of 1086566488225 is 1042385.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 391163935761 + 695402552464 = 625431^2 + 833908^2 .

It is not a de Polignac number, because 1086566488225 - 2⁷ = 1086566488097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 849543136 + ... + 849544414.

Almost surely, 2^{1086566488225} is an apocalyptic number.

1086566488225 is the 1042385-th square number.

1086566488225 is the 521193-rd centered octagonal number.

It is an amenable number.

1086566488225 is a deficient number, since it is larger than the sum of its proper divisors (270153338258).

1086566488225 is an frugal number, since it uses more digits than its factorization.

1086566488225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2894 (or 1447 counting only the distinct ones).

The product of its (nonzero) digits is 44236800, while the sum is 61.

The spelling of 1086566488225 in words is "one trillion, eighty-six billion, five hundred sixty-six million, four hundred eighty-eight thousand, two hundred twenty-five".