1163682145081 has 9 divisors (see below), whose sum is σ = 1191421369701. Its totient is φ = 1136574462492.

The previous prime is 1163682145069. The next prime is 1163682145099. The reversal of 1163682145081 is 1805412863611.

The square root of 1163682145081 is 1078741.

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

It is not a de Polignac number, because 1163682145081 - 2⁷ = 1163682144953 is a prime.

It is a super-2 number, since 2×1163682145081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1163682145001) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 46373320 + ... + 46398406.

It is an arithmetic number, because the mean of its divisors is an integer number (132380152189).

Almost surely, 2^{1163682145081} is an apocalyptic number.

1163682145081 is the 1078741-st square number.

1163682145081 is the 539371-st centered octagonal number.

It is an amenable number.

1163682145081 is a deficient number, since it is larger than the sum of its proper divisors (27739224620).

1163682145081 is an frugal number, since it uses more digits than its factorization.

1163682145081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50260 (or 25130 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 1163682145081 in words is "one trillion, one hundred sixty-three billion, six hundred eighty-two million, one hundred forty-five thousand, eighty-one".