2145004411601 has 2 divisors, whose sum is σ = 2145004411602. Its totient is φ = 2145004411600.

The previous prime is 2145004411591. The next prime is 2145004411609. The reversal of 2145004411601 is 1061144005412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1299597720001 + 845406691600 = 1139999^2 + 919460^2 .

It is a cyclic number.

It is not a de Polignac number, because 2145004411601 - 2²⁶ = 2144937302737 is a prime.

It is not a weakly prime, because it can be changed into another prime (2145004411609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072502205800 + 1072502205801.

It is an arithmetic number, because the mean of its divisors is an integer number (1072502205801).

Almost surely, 2^{2145004411601} is an apocalyptic number.

It is an amenable number.

2145004411601 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145004411601 is an equidigital number, since it uses as much as digits as its factorization.

2145004411601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 29.

The spelling of 2145004411601 in words is "two trillion, one hundred forty-five billion, four million, four hundred eleven thousand, six hundred one".