134663881712 has 40 divisors (see below), whose sum is σ = 270381437040. Its totient is φ = 64896168960.

The previous prime is 134663881711. The next prime is 134663881771. The reversal of 134663881712 is 217188366431.

It is a super-2 number, since 2×134663881712² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134663881711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10808 + ... + 519080.

It is an arithmetic number, because the mean of its divisors is an integer number (6759535926).

Almost surely, 2^134663881712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134663881712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135190718520).

134663881712 is an abundant number, since it is smaller than the sum of its proper divisors (135717555328).

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

134663881712 is a wasteful number, since it uses less digits than its factorization.

134663881712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508881 (or 508875 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 50.

The spelling of 134663881712 in words is "one hundred thirty-four billion, six hundred sixty-three million, eight hundred eighty-one thousand, seven hundred twelve".