4161610200421 has 2 divisors, whose sum is σ = 4161610200422. Its totient is φ = 4161610200420.

The previous prime is 4161610200317. The next prime is 4161610200457. The reversal of 4161610200421 is 1240020161614.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3815619196321 + 345991004100 = 1953361^2 + 588210^2 .

It is a cyclic number.

It is not a de Polignac number, because 4161610200421 - 2¹⁷ = 4161610069349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4161610200421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4161610200721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2080805100210 + 2080805100211.

It is an arithmetic number, because the mean of its divisors is an integer number (2080805100211).

Almost surely, 2^{4161610200421} is an apocalyptic number.

It is an amenable number.

4161610200421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4161610200421 is an equidigital number, since it uses as much as digits as its factorization.

4161610200421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 4161610200421 in words is "four trillion, one hundred sixty-one billion, six hundred ten million, two hundred thousand, four hundred twenty-one".