10516781050 has 48 divisors (see below), whose sum is σ = 20457387072. Its totient is φ = 4014806400.

The previous prime is 10516781047. The next prime is 10516781057. The reversal of 10516781050 is 5018761501.

It is a super-2 number, since 2×10516781050² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10516780997 and 10516781015.

It is not an unprimeable number, because it can be changed into a prime (10516781057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 515545 + ... + 535555.

It is an arithmetic number, because the mean of its divisors is an integer number (426195564).

Almost surely, 2^10516781050 is an apocalyptic number.

10516781050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10516781050 is a deficient number, since it is larger than the sum of its proper divisors (9940606022).

10516781050 is a wasteful number, since it uses less digits than its factorization.

10516781050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20503 (or 20498 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 34.

The spelling of 10516781050 in words is "ten billion, five hundred sixteen million, seven hundred eighty-one thousand, fifty".