80210097720 has 160 divisors (see below), whose sum is σ = 269881642800. Its totient is φ = 21366623232.

The previous prime is 80210097703. The next prime is 80210097761. The reversal of 80210097720 is 2779001208.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3152811 + ... + 3178149.

Almost surely, 2^80210097720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80210097720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134940821400).

80210097720 is an abundant number, since it is smaller than the sum of its proper divisors (189671545080).

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

80210097720 is a wasteful number, since it uses less digits than its factorization.

80210097720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26339 (or 26326 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

Adding to 80210097720 its reverse (2779001208), we get a palindrome (82989098928).

The spelling of 80210097720 in words is "eighty billion, two hundred ten million, ninety-seven thousand, seven hundred twenty".