2154241664371 has 2 divisors, whose sum is σ = 2154241664372. Its totient is φ = 2154241664370.

The previous prime is 2154241664339. The next prime is 2154241664423. The reversal of 2154241664371 is 1734661424512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2154241664371 - 2⁵ = 2154241664339 is a prime.

It is not a weakly prime, because it can be changed into another prime (2154241664171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077120832185 + 1077120832186.

It is an arithmetic number, because the mean of its divisors is an integer number (1077120832186).

Almost surely, 2^{2154241664371} is an apocalyptic number.

2154241664371 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154241664371 is an equidigital number, since it uses as much as digits as its factorization.

2154241664371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 46.

The spelling of 2154241664371 in words is "two trillion, one hundred fifty-four billion, two hundred forty-one million, six hundred sixty-four thousand, three hundred seventy-one".