10663220868 has 24 divisors (see below), whose sum is σ = 24937025568. Its totient is φ = 3546381696.

The previous prime is 10663220861. The next prime is 10663220881. The reversal of 10663220868 is 86802236601.

It is a super-2 number, since 2×10663220868² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10663220861) 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, 997621 + ... + 1008252.

It is an arithmetic number, because the mean of its divisors is an integer number (1039042732).

Almost surely, 2^10663220868 is an apocalyptic number.

It is an amenable number.

10663220868 is an abundant number, since it is smaller than the sum of its proper divisors (14273804700).

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

10663220868 is a wasteful number, since it uses less digits than its factorization.

10663220868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006323 (or 2006321 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 10663220868 in words is "ten billion, six hundred sixty-three million, two hundred twenty thousand, eight hundred sixty-eight".