10245643353620 has 24 divisors (see below), whose sum is σ = 21921810498504. Its totient is φ = 4020931730816.

The previous prime is 10245643353619. The next prime is 10245643353623. The reversal of 10245643353620 is 2635334654201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3335400910864 + 6910242442756 = 1826308^2 + 2628734^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10245643353623) 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, 4832849579 + ... + 4832851698.

It is an arithmetic number, because the mean of its divisors is an integer number (913408770771).

Almost surely, 2^{10245643353620} is an apocalyptic number.

10245643353620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10245643353620 is an abundant number, since it is smaller than the sum of its proper divisors (11676167144884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10245643353620 is a wasteful number, since it uses less digits than its factorization.

10245643353620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9665701339 (or 9665701337 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 44.

The spelling of 10245643353620 in words is "ten trillion, two hundred forty-five billion, six hundred forty-three million, three hundred fifty-three thousand, six hundred twenty".