10145516081 has 2 divisors, whose sum is σ = 10145516082. Its totient is φ = 10145516080.

The previous prime is 10145516077. The next prime is 10145516111. The reversal of 10145516081 is 18061554101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10016807056 + 128709025 = 100084^2 + 11345^2 .

It is an emirp because it is prime and its reverse (18061554101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10145516081 - 2² = 10145516077 is a prime.

It is a super-2 number, since 2×10145516081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10145516681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5072758040 + 5072758041.

It is an arithmetic number, because the mean of its divisors is an integer number (5072758041).

Almost surely, 2^10145516081 is an apocalyptic number.

It is an amenable number.

10145516081 is a deficient number, since it is larger than the sum of its proper divisors (1).

10145516081 is an equidigital number, since it uses as much as digits as its factorization.

10145516081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 32.

The spelling of 10145516081 in words is "ten billion, one hundred forty-five million, five hundred sixteen thousand, eighty-one".