10305143346661 has 4 divisors (see below), whose sum is σ = 10337651685612. Its totient is φ = 10272635007712.

The previous prime is 10305143346653. The next prime is 10305143346671. The reversal of 10305143346661 is 16664334150301.

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 3421367893636 + 6883775453025 = 1849694^2 + 2623695^2 .

It is a cyclic number.

It is not a de Polignac number, because 10305143346661 - 2³ = 10305143346653 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 (10305143346671) 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, 16254169000 + ... + 16254169633.

It is an arithmetic number, because the mean of its divisors is an integer number (2584412921403).

Almost surely, 2^{10305143346661} is an apocalyptic number.

It is an amenable number.

10305143346661 is a deficient number, since it is larger than the sum of its proper divisors (32508338951).

10305143346661 is an equidigital number, since it uses as much as digits as its factorization.

10305143346661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32508338950.

The product of its (nonzero) digits is 466560, while the sum is 43.

Adding to 10305143346661 its reverse (16664334150301), we get a palindrome (26969477496962).

The spelling of 10305143346661 in words is "ten trillion, three hundred five billion, one hundred forty-three million, three hundred forty-six thousand, six hundred sixty-one".