6550161786 has 24 divisors (see below), whose sum is σ = 16219448544. Its totient is φ = 1871474760.

The previous prime is 6550161781. The next prime is 6550161797. The reversal of 6550161786 is 6871610556.

6550161786 is a `hidden beast` number, since 6 + 5 + 501 + 61 + 7 + 86 = 666.

It is not an unprimeable number, because it can be changed into a prime (6550161781) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 25992580 + ... + 25992831.

It is an arithmetic number, because the mean of its divisors is an integer number (675810356).

Almost surely, 2^6550161786 is an apocalyptic number.

6550161786 is an abundant number, since it is smaller than the sum of its proper divisors (9669286758).

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

6550161786 is a wasteful number, since it uses less digits than its factorization.

6550161786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51985426 (or 51985423 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 6550161786 is about 80933.0697922672. The cubic root of 6550161786 is about 1871.0440361366.

The spelling of 6550161786 in words is "six billion, five hundred fifty million, one hundred sixty-one thousand, seven hundred eighty-six".