1181081357601 has 32 divisors (see below), whose sum is σ = 1656134726400. Its totient is φ = 747874093824.

The previous prime is 1181081357587. The next prime is 1181081357627. The reversal of 1181081357601 is 1067531801811.

It is not a de Polignac number, because 1181081357601 - 2¹⁴ = 1181081341217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1181081357101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 666291 + ... + 1675143.

It is an arithmetic number, because the mean of its divisors is an integer number (51754210200).

Almost surely, 2^{1181081357601} is an apocalyptic number.

It is an amenable number.

1181081357601 is a deficient number, since it is larger than the sum of its proper divisors (475053368799).

1181081357601 is a wasteful number, since it uses less digits than its factorization.

1181081357601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009145.

The product of its (nonzero) digits is 40320, while the sum is 42.

The spelling of 1181081357601 in words is "one trillion, one hundred eighty-one billion, eighty-one million, three hundred fifty-seven thousand, six hundred one".