66614357376 has 192 divisors, whose sum is σ = 220548276000. Its totient is φ = 18904596480.

The previous prime is 66614357323. The next prime is 66614357401. The reversal of 66614357376 is 67375341666.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1173816 + ... + 1229256.

Almost surely, 2^66614357376 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 66614357376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110274138000).

66614357376 is an abundant number, since it is smaller than the sum of its proper divisors (153933918624).

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

66614357376 is a wasteful number, since it uses less digits than its factorization.

66614357376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55617 (or 55602 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 54.

The spelling of 66614357376 in words is "sixty-six billion, six hundred fourteen million, three hundred fifty-seven thousand, three hundred seventy-six".