22507570000 has 100 divisors (see below), whose sum is σ = 56862923040. Its totient is φ = 8611504000.

The previous prime is 22507569967. The next prime is 22507570003. The reversal of 22507570000 is 7570522.

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22507570003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 181071 + ... + 278929.

Almost surely, 2^22507570000 is an apocalyptic number.

22507570000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22507570000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28431461520).

22507570000 is an abundant number, since it is smaller than the sum of its proper divisors (34355353040).

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

22507570000 is an equidigital number, since it uses as much as digits as its factorization.

22507570000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97910 (or 97889 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 28.

The spelling of 22507570000 in words is "twenty-two billion, five hundred seven million, five hundred seventy thousand".