22160215506 has 64 divisors (see below), whose sum is σ = 52257292416. Its totient is φ = 6176217600.

The previous prime is 22160215487. The next prime is 22160215531. The reversal of 22160215506 is 60551206122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191046 + ... + 284286.

It is an arithmetic number, because the mean of its divisors is an integer number (816520194).

Almost surely, 2^22160215506 is an apocalyptic number.

22160215506 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22160215506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26128646208).

22160215506 is an abundant number, since it is smaller than the sum of its proper divisors (30097076910).

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

22160215506 is a wasteful number, since it uses less digits than its factorization.

22160215506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93547.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 22160215506 in words is "twenty-two billion, one hundred sixty million, two hundred fifteen thousand, five hundred six".