10643511606 has 128 divisors (see below), whose sum is σ = 27962081280. Its totient is φ = 2620864512.

The previous prime is 10643511601. The next prime is 10643511629. The reversal of 10643511606 is 60611534601.

It is a super-2 number, since 2×10643511606² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10643511601) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1174300 + ... + 1183328.

It is an arithmetic number, because the mean of its divisors is an integer number (218453760).

Almost surely, 2^10643511606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10643511606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13981040640).

10643511606 is an abundant number, since it is smaller than the sum of its proper divisors (17318569674).

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

10643511606 is a wasteful number, since it uses less digits than its factorization.

10643511606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9198.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 10643511606 in words is "ten billion, six hundred forty-three million, five hundred eleven thousand, six hundred six".