10645580 has 72 divisors (see below), whose sum is σ = 25338096. Its totient is φ = 3752320.

The previous prime is 10645577. The next prime is 10645589. The reversal of 10645580 is 8554601.

It is a happy number.

It is a super-2 number, since 2×10645580² = 226656747072800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10645589) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128219 + ... + 128301.

It is an arithmetic number, because the mean of its divisors is an integer number (351918).

Almost surely, 2^10645580 is an apocalyptic number.

10645580 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 10645580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12669048).

10645580 is an abundant number, since it is smaller than the sum of its proper divisors (14692516).

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

10645580 is a wasteful number, since it uses less digits than its factorization.

10645580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 10645580 is about 3262.7565033266. The cubic root of 10645580 is about 219.9833320705.

The spelling of 10645580 in words is "ten million, six hundred forty-five thousand, five hundred eighty".