1181632046841 has 45 divisors (see below), whose sum is σ = 1775695107901. Its totient is φ = 783078299136.

The previous prime is 1181632046839. The next prime is 1181632046851. The reversal of 1181632046841 is 1486402361811.

The square root of 1181632046841 is 1087029.

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

1181632046841 is a `hidden beast` number, since 1 + 1 + 8 + 1 + 632 + 0 + 4 + 6 + 8 + 4 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 191169198441 + 990462848400 = 437229^2 + 995220^2 .

It is not a de Polignac number, because 1181632046841 - 2¹ = 1181632046839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1181632046801) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 2631696985 + ... + 2631697433.

Almost surely, 2^{1181632046841} is an apocalyptic number.

1181632046841 is the 1087029-th square number.

1181632046841 is the 543515-th centered octagonal number.

It is an amenable number.

1181632046841 is a deficient number, since it is larger than the sum of its proper divisors (594063061060).

1181632046841 is an frugal number, since it uses more digits than its factorization.

1181632046841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 1181632046841 in words is "one trillion, one hundred eighty-one billion, six hundred thirty-two million, forty-six thousand, eight hundred forty-one".