80820002140 has 48 divisors (see below), whose sum is σ = 170525293344. Its totient is φ = 32175360000.

The previous prime is 80820002093. The next prime is 80820002149. The reversal of 80820002140 is 4120002808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80820002149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3654115 + ... + 3676165.

It is an arithmetic number, because the mean of its divisors is an integer number (3552610278).

Almost surely, 2^80820002140 is an apocalyptic number.

It is an amenable number.

80820002140 is an abundant number, since it is smaller than the sum of its proper divisors (89705291204).

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

80820002140 is a wasteful number, since it uses less digits than its factorization.

80820002140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22918 (or 22916 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

Adding to 80820002140 its reverse (4120002808), we get a palindrome (84940004948).

The spelling of 80820002140 in words is "eighty billion, eight hundred twenty million, two thousand, one hundred forty".