22206871861944 has 1536 divisors, whose sum is σ = 79417088409600. Its totient is φ = 5013840384000.

The previous prime is 22206871861901. The next prime is 22206871861949. The reversal of 22206871861944 is 44916817860222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22206871861949) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 36584632089 + ... + 36584632695.

It is an arithmetic number, because the mean of its divisors is an integer number (51703833600).

Almost surely, 2^{22206871861944} is an apocalyptic number.

22206871861944 is a gapful number since it is divisible by the number (24) 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 22206871861944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39708544204800).

22206871861944 is an abundant number, since it is smaller than the sum of its proper divisors (57210216547656).

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

22206871861944 is a wasteful number, since it uses less digits than its factorization.

22206871861944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 60.

The spelling of 22206871861944 in words is "twenty-two trillion, two hundred six billion, eight hundred seventy-one million, eight hundred sixty-one thousand, nine hundred forty-four".