1610106630221 has 4 divisors (see below), whose sum is σ = 1610132306844. Its totient is φ = 1610080953600.

The previous prime is 1610106630173. The next prime is 1610106630239. The reversal of 1610106630221 is 1220366010161.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1586907075625 + 23199554596 = 1259725^2 + 152314^2 .

It is a cyclic number.

It is not a de Polignac number, because 1610106630221 - 2⁶ = 1610106630157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1610106630271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12744020 + ... + 12869741.

It is an arithmetic number, because the mean of its divisors is an integer number (402533076711).

Almost surely, 2^{1610106630221} is an apocalyptic number.

It is an amenable number.

1610106630221 is a deficient number, since it is larger than the sum of its proper divisors (25676623).

1610106630221 is an equidigital number, since it uses as much as digits as its factorization.

1610106630221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25676622.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 1610106630221 in words is "one trillion, six hundred ten billion, one hundred six million, six hundred thirty thousand, two hundred twenty-one".