22178542080 has 160 divisors (see below), whose sum is σ = 70996134528. Its totient is φ = 5906432000.

The previous prime is 22178542079. The next prime is 22178542147. The reversal of 22178542080 is 8024587122.

It is a tau number, because it is divible by the number of its divisors (160).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7916680 + ... + 7919480.

Almost surely, 2^22178542080 is an apocalyptic number.

22178542080 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 22178542080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35498067264).

22178542080 is an abundant number, since it is smaller than the sum of its proper divisors (48817592448).

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

22178542080 is a wasteful number, since it uses less digits than its factorization.

22178542080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3858 (or 3842 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The spelling of 22178542080 in words is "twenty-two billion, one hundred seventy-eight million, five hundred forty-two thousand, eighty".