2281357666401 has 8 divisors (see below), whose sum is σ = 3318338423904. Its totient is φ = 1382641009920.

The previous prime is 2281357666387. The next prime is 2281357666453. The reversal of 2281357666401 is 1046667531822.

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

It is a de Polignac number, because none of the positive numbers 2^k-2281357666401 is a prime.

It is a super-3 number, since 3×2281357666401³ (a number of 38 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2281357666201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34566025216 + ... + 34566025281.

It is an arithmetic number, because the mean of its divisors is an integer number (414792302988).

Almost surely, 2^{2281357666401} is an apocalyptic number.

It is an amenable number.

2281357666401 is a deficient number, since it is larger than the sum of its proper divisors (1036980757503).

2281357666401 is a wasteful number, since it uses less digits than its factorization.

2281357666401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69132050511.

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 2281357666401 in words is "two trillion, two hundred eighty-one billion, three hundred fifty-seven million, six hundred sixty-six thousand, four hundred one".