66376107942144 has 1152 divisors, whose sum is σ = 252103571865600. Its totient is φ = 14930039439360.

The previous prime is 66376107942119. The next prime is 66376107942161. The reversal of 66376107942144 is 44124970167366.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1504456917 + ... + 1504501035.

Almost surely, 2^{66376107942144} is an apocalyptic number.

66376107942144 is a gapful number since it is divisible by the number (64) 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 66376107942144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126051785932800).

66376107942144 is an abundant number, since it is smaller than the sum of its proper divisors (185727463923456).

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

66376107942144 is a wasteful number, since it uses less digits than its factorization.

66376107942144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44291 (or 44277 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 60.

The spelling of 66376107942144 in words is "sixty-six trillion, three hundred seventy-six billion, one hundred seven million, nine hundred forty-two thousand, one hundred forty-four".