22720052720 has 40 divisors (see below), whose sum is σ = 53820814176. Its totient is φ = 8916547328.

The previous prime is 22720052711. The next prime is 22720052783. The reversal of 22720052720 is 2725002722.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2675012 + ... + 2683491.

Almost surely, 2^22720052720 is an apocalyptic number.

22720052720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22720052720 is an abundant number, since it is smaller than the sum of its proper divisors (31100761456).

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

22720052720 is a wasteful number, since it uses less digits than its factorization.

22720052720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5358569 (or 5358563 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The spelling of 22720052720 in words is "twenty-two billion, seven hundred twenty million, fifty-two thousand, seven hundred twenty".