10320445646 has 32 divisors (see below), whose sum is σ = 18740134080. Its totient is φ = 4161263616.

The previous prime is 10320445643. The next prime is 10320445649. The reversal of 10320445646 is 64654402301.

It is an interprime number because it is at equal distance from previous prime (10320445643) and next prime (10320445649).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10320445643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 756986 + ... + 770498.

It is an arithmetic number, because the mean of its divisors is an integer number (585629190).

Almost surely, 2^10320445646 is an apocalyptic number.

10320445646 is a deficient number, since it is larger than the sum of its proper divisors (8419688434).

10320445646 is a wasteful number, since it uses less digits than its factorization.

10320445646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16748.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 10320445646 its reverse (64654402301), we get a palindrome (74974847947).

The spelling of 10320445646 in words is "ten billion, three hundred twenty million, four hundred forty-five thousand, six hundred forty-six".