179828666649 has 8 divisors (see below), whose sum is σ = 266412839520. Its totient is φ = 119885777748.

The previous prime is 179828666639. The next prime is 179828666657. The reversal of 179828666649 is 946666828971.

It is not a de Polignac number, because 179828666649 - 2⁸ = 179828666393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (179828666609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3330160467 + ... + 3330160520.

It is an arithmetic number, because the mean of its divisors is an integer number (33301604940).

Almost surely, 2^179828666649 is an apocalyptic number.

It is an amenable number.

179828666649 is a deficient number, since it is larger than the sum of its proper divisors (86584172871).

179828666649 is an equidigital number, since it uses as much as digits as its factorization.

179828666649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6660320996 (or 6660320990 counting only the distinct ones).

The product of its digits is 376233984, while the sum is 72.

It can be divided in two parts, 179 and 828666649, that added together give a palindrome (828666828).

The spelling of 179828666649 in words is "one hundred seventy-nine billion, eight hundred twenty-eight million, six hundred sixty-six thousand, six hundred forty-nine".