10165520 has 40 divisors (see below), whose sum is σ = 24403200. Its totient is φ = 3934080.

The previous prime is 10165459. The next prime is 10165531. The reversal of 10165520 is 2556101.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 10165492 and 10165501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431 + ... + 4529.

It is an arithmetic number, because the mean of its divisors is an integer number (610080).

Almost surely, 2^10165520 is an apocalyptic number.

10165520 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 10165520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12201600).

10165520 is an abundant number, since it is smaller than the sum of its proper divisors (14237680).

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

10165520 is a wasteful number, since it uses less digits than its factorization.

10165520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143 (or 4137 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 10165520 is about 3188.3412615340. The cubic root of 10165520 is about 216.6256437784.

The spelling of 10165520 in words is "ten million, one hundred sixty-five thousand, five hundred twenty".