10812065815 has 16 divisors (see below), whose sum is σ = 13377048192. Its totient is φ = 8383094784.

The previous prime is 10812065783. The next prime is 10812065819. The reversal of 10812065815 is 51856021801.

It is a cyclic number.

It is not a de Polignac number, because 10812065815 - 2⁵ = 10812065783 is a prime.

It is a super-2 number, since 2×10812065815² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10812065819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66159 + ... + 161248.

It is an arithmetic number, because the mean of its divisors is an integer number (836065512).

Almost surely, 2^10812065815 is an apocalyptic number.

10812065815 is a deficient number, since it is larger than the sum of its proper divisors (2564982377).

10812065815 is a wasteful number, since it uses less digits than its factorization.

10812065815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227706.

The product of its (nonzero) digits is 19200, while the sum is 37.

The spelling of 10812065815 in words is "ten billion, eight hundred twelve million, sixty-five thousand, eight hundred fifteen".