2066313255401 has 4 divisors (see below), whose sum is σ = 2187861093972. Its totient is φ = 1944765416832.

The previous prime is 2066313255397. The next prime is 2066313255403. The reversal of 2066313255401 is 1045523136602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1104020924176 + 962292331225 = 1050724^2 + 980965^2 .

It is not a de Polignac number, because 2066313255401 - 2² = 2066313255397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2066313255403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60773919260 + ... + 60773919293.

It is an arithmetic number, because the mean of its divisors is an integer number (546965273493).

Almost surely, 2^{2066313255401} is an apocalyptic number.

It is an amenable number.

2066313255401 is a deficient number, since it is larger than the sum of its proper divisors (121547838571).

2066313255401 is a wasteful number, since it uses less digits than its factorization.

2066313255401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121547838570.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 2066313255401 in words is "two trillion, sixty-six billion, three hundred thirteen million, two hundred fifty-five thousand, four hundred one".