10530665280 has 224 divisors, whose sum is σ = 38349204480. Its totient is φ = 2717521920.

The previous prime is 10530665267. The next prime is 10530665293. The reversal of 10530665280 is 8256603501.

10530665280 is a `hidden beast` number, since 10 + 5 + 306 + 65 + 280 = 666.

It is an interprime number because it is at equal distance from previous prime (10530665267) and next prime (10530665293).

It is a super-2 number, since 2×10530665280² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248182 + ... + 287498.

Almost surely, 2^10530665280 is an apocalyptic number.

10530665280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10530665280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19174602240).

10530665280 is an abundant number, since it is smaller than the sum of its proper divisors (27818539200).

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

10530665280 is a wasteful number, since it uses less digits than its factorization.

10530665280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39374 (or 39358 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 10530665280 in words is "ten billion, five hundred thirty million, six hundred sixty-five thousand, two hundred eighty".