80182870646 has 16 divisors (see below), whose sum is σ = 127315227600. Its totient is φ = 37808762208.

The previous prime is 80182870643. The next prime is 80182870723. The reversal of 80182870646 is 64607828108.

It is a junction number, because it is equal to n+sod(n) for n = 80182870594 and 80182870603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80182870643) 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 7 ways as a sum of consecutive naturals, for example, 16072661 + ... + 16077648.

It is an arithmetic number, because the mean of its divisors is an integer number (7957201725).

Almost surely, 2^80182870646 is an apocalyptic number.

80182870646 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

80182870646 is a deficient number, since it is larger than the sum of its proper divisors (47132356954).

80182870646 is a wasteful number, since it uses less digits than its factorization.

80182870646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32150383.

The product of its (nonzero) digits is 1032192, while the sum is 50.

The spelling of 80182870646 in words is "eighty billion, one hundred eighty-two million, eight hundred seventy thousand, six hundred forty-six".