16765771650 has 96 divisors (see below), whose sum is σ = 42002454528. Its totient is φ = 4425523200.

The previous prime is 16765771643. The next prime is 16765771651. The reversal of 16765771650 is 5617756761.

It is a junction number, because it is equal to n+sod(n) for n = 16765771593 and 16765771602.

It is not an unprimeable number, because it can be changed into a prime (16765771651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12210364 + ... + 12211736.

It is an arithmetic number, because the mean of its divisors is an integer number (437525568).

Almost surely, 2^16765771650 is an apocalyptic number.

16765771650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16765771650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21001227264).

16765771650 is an abundant number, since it is smaller than the sum of its proper divisors (25236682878).

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

16765771650 is a wasteful number, since it uses less digits than its factorization.

16765771650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156 (or 2151 counting only the distinct ones).

The product of its (nonzero) digits is 1852200, while the sum is 51.

The spelling of 16765771650 in words is "sixteen billion, seven hundred sixty-five million, seven hundred seventy-one thousand, six hundred fifty".