22323636540 has 144 divisors (see below), whose sum is σ = 69528906720. Its totient is φ = 5794191360.

The previous prime is 22323636527. The next prime is 22323636589. The reversal of 22323636540 is 4563632322.

22323636540 is a `hidden beast` number, since 2 + 23 + 236 + 365 + 40 = 666.

It is a super-3 number, since 3×22323636540³ (a number of 32 digits) contains 333 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 22323636495 and 22323636504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3369351 + ... + 3375969.

It is an arithmetic number, because the mean of its divisors is an integer number (482839630).

Almost surely, 2^22323636540 is an apocalyptic number.

22323636540 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 22323636540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34764453360).

22323636540 is an abundant number, since it is smaller than the sum of its proper divisors (47205270180).

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

22323636540 is a wasteful number, since it uses less digits than its factorization.

22323636540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7132 (or 7127 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

The spelling of 22323636540 in words is "twenty-two billion, three hundred twenty-three million, six hundred thirty-six thousand, five hundred forty".