22087061440 has 56 divisors (see below), whose sum is σ = 52929934272. Its totient is φ = 8778531840.

The previous prime is 22087061431. The next prime is 22087061489. The reversal of 22087061440 is 4416078022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22087061396 and 22087061405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169576 + ... + 270055.

Almost surely, 2^22087061440 is an apocalyptic number.

22087061440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22087061440 is an abundant number, since it is smaller than the sum of its proper divisors (30842872832).

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

22087061440 is a wasteful number, since it uses less digits than its factorization.

22087061440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439805 (or 439795 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The spelling of 22087061440 in words is "twenty-two billion, eighty-seven million, sixty-one thousand, four hundred forty".