182111449905 has 336 divisors, whose sum is σ = 418774363392. Its totient is φ = 74364998400.

The previous prime is 182111449811. The next prime is 182111449909. The reversal of 182111449905 is 509944111281.

It is a happy number.

182111449905 is a `hidden beast` number, since 1 + 8 + 2 + 111 + 449 + 90 + 5 = 666.

It is not a de Polignac number, because 182111449905 - 2⁸ = 182111449649 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (182111449909) 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 335 ways as a sum of consecutive naturals, for example, 188325732 + ... + 188326698.

It is an arithmetic number, because the mean of its divisors is an integer number (1246352272).

Almost surely, 2^182111449905 is an apocalyptic number.

182111449905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

182111449905 is an abundant number, since it is smaller than the sum of its proper divisors (236662913487).

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

182111449905 is an equidigital number, since it uses as much as digits as its factorization.

182111449905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080 (or 1054 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The spelling of 182111449905 in words is "one hundred eighty-two billion, one hundred eleven million, four hundred forty-nine thousand, nine hundred five".