2161450100053 has 2 divisors, whose sum is σ = 2161450100054. Its totient is φ = 2161450100052.

The previous prime is 2161450100011. The next prime is 2161450100057. The reversal of 2161450100053 is 3500010541612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1284489022609 + 876961077444 = 1133353^2 + 936462^2 .

It is a cyclic number.

It is not a de Polignac number, because 2161450100053 - 2²⁹ = 2160913229141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2161450099994 and 2161450100030.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2161450100057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080725050026 + 1080725050027.

It is an arithmetic number, because the mean of its divisors is an integer number (1080725050027).

Almost surely, 2^{2161450100053} is an apocalyptic number.

It is an amenable number.

2161450100053 is a deficient number, since it is larger than the sum of its proper divisors (1).

2161450100053 is an equidigital number, since it uses as much as digits as its factorization.

2161450100053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 2161450100053 its reverse (3500010541612), we get a palindrome (5661460641665).

The spelling of 2161450100053 in words is "two trillion, one hundred sixty-one billion, four hundred fifty million, one hundred thousand, fifty-three".