22145600670 has 64 divisors (see below), whose sum is σ = 55991036160. Its totient is φ = 5590252800.

The previous prime is 22145600621. The next prime is 22145600677. The reversal of 22145600670 is 7600654122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22145600677) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 738265 + ... + 767675.

It is an arithmetic number, because the mean of its divisors is an integer number (874859940).

Almost surely, 2^22145600670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22145600670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27995518080).

22145600670 is an abundant number, since it is smaller than the sum of its proper divisors (33845435490).

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

22145600670 is a wasteful number, since it uses less digits than its factorization.

22145600670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30761.

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 22145600670 in words is "twenty-two billion, one hundred forty-five million, six hundred thousand, six hundred seventy".