22140878136 has 64 divisors (see below), whose sum is σ = 59825488800. Its totient is φ = 6787957248.

The previous prime is 22140878119. The next prime is 22140878159. The reversal of 22140878136 is 63187804122.

It is a congruent number.

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, 41671 + ... + 214518.

Almost surely, 2^22140878136 is an apocalyptic number.

22140878136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

22140878136 is an abundant number, since it is smaller than the sum of its proper divisors (37684610664).

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

22140878136 is a wasteful number, since it uses less digits than its factorization.

22140878136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256488 (or 256484 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 22140878136 in words is "twenty-two billion, one hundred forty million, eight hundred seventy-eight thousand, one hundred thirty-six".