1422566691840 has 1056 divisors, whose sum is σ = 5770416098304. Its totient is φ = 317337108480.

The previous prime is 1422566691823. The next prime is 1422566691877. The reversal of 1422566691840 is 481966652241.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3876203337 + ... + 3876203703.

It is an arithmetic number, because the mean of its divisors is an integer number (5464409184).

Almost surely, 2^{1422566691840} is an apocalyptic number.

1422566691840 is a gapful number since it is divisible by the number (10) 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 1422566691840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2885208049152).

1422566691840 is an abundant number, since it is smaller than the sum of its proper divisors (4347849406464).

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

1422566691840 is a wasteful number, since it uses less digits than its factorization.

1422566691840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 642 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 1422566691840 in words is "one trillion, four hundred twenty-two billion, five hundred sixty-six million, six hundred ninety-one thousand, eight hundred forty".