13950666438912 has 432 divisors, whose sum is σ = 48446070400000. Its totient is φ = 3771653124096.

The previous prime is 13950666438889. The next prime is 13950666438937. The reversal of 13950666438912 is 21983466605931.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 13950666438912.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 263198589 + ... + 263251587.

Almost surely, 2^{13950666438912} is an apocalyptic number.

13950666438912 is a gapful number since it is divisible by the number (12) 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 13950666438912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24223035200000).

13950666438912 is an abundant number, since it is smaller than the sum of its proper divisors (34495403961088).

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

13950666438912 is a wasteful number, since it uses less digits than its factorization.

13950666438912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53906 (or 53889 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 63.

The spelling of 13950666438912 in words is "thirteen trillion, nine hundred fifty billion, six hundred sixty-six million, four hundred thirty-eight thousand, nine hundred twelve".