10525536666 has 48 divisors (see below), whose sum is σ = 24105407040. Its totient is φ = 3310035840.

The previous prime is 10525536653. The next prime is 10525536727. The reversal of 10525536666 is 66663552501.

It is a super-2 number, since 2×10525536666² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18571 + ... + 146273.

It is an arithmetic number, because the mean of its divisors is an integer number (502195980).

Almost surely, 2^10525536666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10525536666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12052703520).

10525536666 is an abundant number, since it is smaller than the sum of its proper divisors (13579870374).

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

10525536666 is a wasteful number, since it uses less digits than its factorization.

10525536666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127971 (or 127968 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The spelling of 10525536666 in words is "ten billion, five hundred twenty-five million, five hundred thirty-six thousand, six hundred sixty-six".