10263445664 has 48 divisors (see below), whose sum is σ = 21142695168. Its totient is φ = 4895100672.

The previous prime is 10263445657. The next prime is 10263445667. The reversal of 10263445664 is 46654436201.

It is not an unprimeable number, because it can be changed into a prime (10263445667) 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, 251114 + ... + 289110.

It is an arithmetic number, because the mean of its divisors is an integer number (440472816).

Almost surely, 2^10263445664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10263445664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10571347584).

10263445664 is an abundant number, since it is smaller than the sum of its proper divisors (10879249504).

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

10263445664 is a wasteful number, since it uses less digits than its factorization.

10263445664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38397 (or 38389 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 10263445664 in words is "ten billion, two hundred sixty-three million, four hundred forty-five thousand, six hundred sixty-four".