2164626201401 has 2 divisors, whose sum is σ = 2164626201402. Its totient is φ = 2164626201400.

The previous prime is 2164626201349. The next prime is 2164626201427. The reversal of 2164626201401 is 1041026264612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1957145040400 + 207481161001 = 1398980^2 + 455501^2 .

It is a cyclic number.

It is not a de Polignac number, because 2164626201401 - 2⁶ = 2164626201337 is a prime.

It is a super-2 number, since 2×2164626201401² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2164626201431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082313100700 + 1082313100701.

It is an arithmetic number, because the mean of its divisors is an integer number (1082313100701).

Almost surely, 2^{2164626201401} is an apocalyptic number.

It is an amenable number.

2164626201401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164626201401 is an equidigital number, since it uses as much as digits as its factorization.

2164626201401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 2164626201401 in words is "two trillion, one hundred sixty-four billion, six hundred twenty-six million, two hundred one thousand, four hundred one".