181402394316001 has 8 divisors (see below), whose sum is σ = 182515944148200. Its totient is φ = 180292163560320.

The previous prime is 181402394315999. The next prime is 181402394316029. The reversal of 181402394316001 is 100613493204181.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 68064546015376 + 113337848300625 = 8250124^2 + 10646025^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 181402394316001 - 2¹ = 181402394315999 is a prime.

It is a super-3 number, since 3×181402394316001³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (181402394316071) 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, 829659486 + ... + 829878103.

It is an arithmetic number, because the mean of its divisors is an integer number (22814493018525).

Almost surely, 2^{181402394316001} is an apocalyptic number.

It is an amenable number.

181402394316001 is a deficient number, since it is larger than the sum of its proper divisors (1113549832199).

181402394316001 is a wasteful number, since it uses less digits than its factorization.

181402394316001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659538259.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 181402394316001 in words is "one hundred eighty-one trillion, four hundred two billion, three hundred ninety-four million, three hundred sixteen thousand, one".