1166874476481 has 64 divisors (see below), whose sum is σ = 2033581248000. Its totient is φ = 647317536768.

The previous prime is 1166874476459. The next prime is 1166874476483. The reversal of 1166874476481 is 1846744786611.

1166874476481 is a `hidden beast` number, since 1 + 1 + 6 + 6 + 87 + 4 + 4 + 76 + 481 = 666.

It is not a de Polignac number, because 1166874476481 - 2⁷ = 1166874476353 is a prime.

It is a super-2 number, since 2×1166874476481² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (1166874476483) 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, 2954041 + ... + 3325673.

It is an arithmetic number, because the mean of its divisors is an integer number (31774707000).

Almost surely, 2^{1166874476481} is an apocalyptic number.

It is an amenable number.

1166874476481 is a deficient number, since it is larger than the sum of its proper divisors (866706771519).

1166874476481 is a wasteful number, since it uses less digits than its factorization.

1166874476481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372135 (or 372129 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 63.

The spelling of 1166874476481 in words is "one trillion, one hundred sixty-six billion, eight hundred seventy-four million, four hundred seventy-six thousand, four hundred eighty-one".