13966142400 has 504 divisors, whose sum is σ = 57036106400. Its totient is φ = 3175096320.

The previous prime is 13966142381. The next prime is 13966142417. The reversal of 13966142400 is 424166931.

13966142400 is a `hidden beast` number, since 1 + 39 + 6 + 614 + 2 + 4 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 35179002 + ... + 35179398.

Almost surely, 2^13966142400 is an apocalyptic number.

13966142400 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 13966142400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28518053200).

13966142400 is an abundant number, since it is smaller than the sum of its proper divisors (43069964000).

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

13966142400 is a wasteful number, since it uses less digits than its factorization.

13966142400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 763 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 13966142400 in words is "thirteen billion, nine hundred sixty-six million, one hundred forty-two thousand, four hundred".