10515540012 has 48 divisors (see below), whose sum is σ = 25393317600. Its totient is φ = 3382848000.

The previous prime is 10515540011. The next prime is 10515540023. The reversal of 10515540012 is 21004551501.

It is a super-2 number, since 2×10515540012² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10515540011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1039314 + ... + 1049382.

It is an arithmetic number, because the mean of its divisors is an integer number (529027450).

Almost surely, 2^10515540012 is an apocalyptic number.

10515540012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10515540012 is an abundant number, since it is smaller than the sum of its proper divisors (14877777588).

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

10515540012 is a wasteful number, since it uses less digits than its factorization.

10515540012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13106 (or 13104 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

The spelling of 10515540012 in words is "ten billion, five hundred fifteen million, five hundred forty thousand, twelve".