10500165020 has 24 divisors (see below), whose sum is σ = 22053779664. Its totient is φ = 4199412096.

The previous prime is 10500165017. The next prime is 10500165023. The reversal of 10500165020 is 2056100501.

It is an interprime number because it is at equal distance from previous prime (10500165017) and next prime (10500165023).

It is a super-2 number, since 2×10500165020² (a number of 21 digits) contains 22 as substring.

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 = 10500164983 and 10500165001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10500165023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103184 + ... + 177896.

It is an arithmetic number, because the mean of its divisors is an integer number (918907486).

Almost surely, 2^10500165020 is an apocalyptic number.

10500165020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10500165020 is an abundant number, since it is smaller than the sum of its proper divisors (11553614644).

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

10500165020 is a wasteful number, since it uses less digits than its factorization.

10500165020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81749 (or 81747 counting only the distinct ones).

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

Adding to 10500165020 its reverse (2056100501), we get a palindrome (12556265521).

The spelling of 10500165020 in words is "ten billion, five hundred million, one hundred sixty-five thousand, twenty".