10165781044 has 6 divisors (see below), whose sum is σ = 17790116834. Its totient is φ = 5082890520.

The previous prime is 10165781029. The next prime is 10165781077. The reversal of 10165781044 is 44018756101.

10165781044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6074643600 + 4091137444 = 77940^2 + 63962^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10165780994 and 10165781012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270722627 + ... + 1270722634.

Almost surely, 2^10165781044 is an apocalyptic number.

It is an amenable number.

10165781044 is a deficient number, since it is larger than the sum of its proper divisors (7624335790).

10165781044 is a wasteful number, since it uses less digits than its factorization.

10165781044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541445265 (or 2541445263 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The spelling of 10165781044 in words is "ten billion, one hundred sixty-five million, seven hundred eighty-one thousand, forty-four".