4106065215421 has 8 divisors (see below), whose sum is σ = 4439122289784. Its totient is φ = 3775466127360.

The previous prime is 4106065215361. The next prime is 4106065215493. The reversal of 4106065215421 is 1245125606014.

It can be written as a sum of positive squares in 4 ways, for example, as 946242562500 + 3159822652921 = 972750^2 + 1777589^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4106065215421 - 2¹¹ = 4106065213373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4106065212421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614493100 + ... + 614499781.

It is an arithmetic number, because the mean of its divisors is an integer number (554890286223).

Almost surely, 2^{4106065215421} is an apocalyptic number.

It is an amenable number.

4106065215421 is a deficient number, since it is larger than the sum of its proper divisors (333057074363).

4106065215421 is a wasteful number, since it uses less digits than its factorization.

4106065215421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228993151.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 4106065215421 in words is "four trillion, one hundred six billion, sixty-five million, two hundred fifteen thousand, four hundred twenty-one".