10501555648 has 84 divisors (see below), whose sum is σ = 21876113728. Its totient is φ = 5001384960.

The previous prime is 10501555637. The next prime is 10501555651. The reversal of 10501555648 is 84655510501.

It is a super-2 number, since 2×10501555648² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10501555648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10596433 + ... + 10597423.

Almost surely, 2^10501555648 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 10501555648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10938056864).

10501555648 is an abundant number, since it is smaller than the sum of its proper divisors (11374558080).

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

10501555648 is an equidigital number, since it uses as much as digits as its factorization.

10501555648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362 (or 1329 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 40.

The spelling of 10501555648 in words is "ten billion, five hundred one million, five hundred fifty-five thousand, six hundred forty-eight".