22071540720 has 40 divisors (see below), whose sum is σ = 68421776976. Its totient is φ = 5885744128.

The previous prime is 22071540677. The next prime is 22071540721. The reversal of 22071540720 is 2704517022.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22071540721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45982137 + ... + 45982616.

Almost surely, 2^22071540720 is an apocalyptic number.

22071540720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22071540720 is an abundant number, since it is smaller than the sum of its proper divisors (46350236256).

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

22071540720 is a wasteful number, since it uses less digits than its factorization.

22071540720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91964769 (or 91964763 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The spelling of 22071540720 in words is "twenty-two billion, seventy-one million, five hundred forty thousand, seven hundred twenty".