381335545201 has 8 divisors (see below), whose sum is σ = 410676752360. Its totient is φ = 351995438592.

The previous prime is 381335545187. The next prime is 381335545231. The reversal of 381335545201 is 102545533183.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 161243205601 + 220092339600 = 401551^2 + 469140^2 .

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-381335545201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381335545231) 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, 532291 + ... + 1022743.

It is an arithmetic number, because the mean of its divisors is an integer number (51334594045).

Almost surely, 2^381335545201 is an apocalyptic number.

It is an amenable number.

381335545201 is a deficient number, since it is larger than the sum of its proper divisors (29341207159).

381335545201 is a wasteful number, since it uses less digits than its factorization.

381335545201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550275.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 381335545201 in words is "three hundred eighty-one billion, three hundred thirty-five million, five hundred forty-five thousand, two hundred one".