1133673581691 has 16 divisors (see below), whose sum is σ = 1919447334400. Its totient is φ = 647813475144.

The previous prime is 1133673581603. The next prime is 1133673581693. The reversal of 1133673581691 is 1961853763311.

1133673581691 is a `hidden beast` number, since 1 + 133 + 67 + 358 + 16 + 91 = 666.

It is not a de Polignac number, because 1133673581691 - 2⁷ = 1133673581563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1133673581693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2999136271 + ... + 2999136648.

It is an arithmetic number, because the mean of its divisors is an integer number (119965458400).

Almost surely, 2^{1133673581691} is an apocalyptic number.

1133673581691 is a deficient number, since it is larger than the sum of its proper divisors (785773752709).

1133673581691 is an equidigital number, since it uses as much as digits as its factorization.

1133673581691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5998272935 (or 5998272929 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The spelling of 1133673581691 in words is "one trillion, one hundred thirty-three billion, six hundred seventy-three million, five hundred eighty-one thousand, six hundred ninety-one".