2320136720 has 80 divisors (see below), whose sum is σ = 6074611200. Its totient is φ = 816460800.

The previous prime is 2320136719. The next prime is 2320136743. The reversal of 2320136720 is 276310232.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 2320136720.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15245 + ... + 69804.

It is an arithmetic number, because the mean of its divisors is an integer number (75932640).

Almost surely, 2^2320136720 is an apocalyptic number.

2320136720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2320136720 is an abundant number, since it is smaller than the sum of its proper divisors (3754474480).

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

2320136720 is a wasteful number, since it uses less digits than its factorization.

2320136720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85104 (or 85098 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 2320136720 is about 48167.7975415111. The cubic root of 2320136720 is about 1323.8471938118.

Adding to 2320136720 its reverse (276310232), we get a palindrome (2596446952).

The spelling of 2320136720 in words is "two billion, three hundred twenty million, one hundred thirty-six thousand, seven hundred twenty".