10206426205145 has 4 divisors (see below), whose sum is σ = 12247711446180. Its totient is φ = 8165140964112.

The previous prime is 10206426205141. The next prime is 10206426205181. The reversal of 10206426205145 is 54150262460201.

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 6185547029776 + 4020879175369 = 2487076^2 + 2005213^2 .

It is a cyclic number.

It is not a de Polignac number, because 10206426205145 - 2² = 10206426205141 is a prime.

It is a super-2 number, since 2×10206426205145² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10206426205099 and 10206426205108.

It is not an unprimeable number, because it can be changed into a prime (10206426205141) 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, 1020642620510 + ... + 1020642620519.

It is an arithmetic number, because the mean of its divisors is an integer number (3061927861545).

Almost surely, 2^{10206426205145} is an apocalyptic number.

It is an amenable number.

10206426205145 is a deficient number, since it is larger than the sum of its proper divisors (2041285241035).

10206426205145 is an equidigital number, since it uses as much as digits as its factorization.

10206426205145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041285241034.

The product of its (nonzero) digits is 115200, while the sum is 38.

Adding to 10206426205145 its reverse (54150262460201), we get a palindrome (64356688665346).

The spelling of 10206426205145 in words is "ten trillion, two hundred six billion, four hundred twenty-six million, two hundred five thousand, one hundred forty-five".