2001008361181 has 8 divisors (see below), whose sum is σ = 2047569844320. Its totient is φ = 1954448078352.

The previous prime is 2001008361161. The next prime is 2001008361197. The reversal of 2001008361181 is 1811638001002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001008361181 is a prime.

It is a super-2 number, since 2×2001008361181² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001008361161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3679890 + ... + 4188508.

It is an arithmetic number, because the mean of its divisors is an integer number (255946230540).

Almost surely, 2^{2001008361181} is an apocalyptic number.

It is an amenable number.

2001008361181 is a deficient number, since it is larger than the sum of its proper divisors (46561483139).

2001008361181 is an equidigital number, since it uses as much as digits as its factorization.

2001008361181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600155.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 2001008361181 in words is "two trillion, one billion, eight million, three hundred sixty-one thousand, one hundred eighty-one".